16550928 has 60 divisors (see below), whose sum is σ = 49051548. Its totient is φ = 5191680.

The previous prime is 16550927. The next prime is 16550929. The reversal of 16550928 is 82905561.

It is a happy number.

16550928 is a `hidden beast` number, since 16 + 550 + 92 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (16550927) and next prime (16550929).

It can be written as a sum of positive squares in 2 ways, for example, as 13046544 + 3504384 = 3612^2 + 1872^2 .

It is a super-2 number, since 2×16550928² = 547866435322368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16550892 and 16550901.

It is not an unprimeable number, because it can be changed into a prime (16550927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933 + ... + 5828.

Almost surely, 2^16550928 is an apocalyptic number.

16550928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16550928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24525774).

16550928 is an abundant number, since it is smaller than the sum of its proper divisors (32500620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16550928 is a wasteful number, since it uses less digits than its factorization.

16550928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792 (or 6783 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 16550928 is about 4068.2831759847. The cubic root of 16550928 is about 254.8438259398.

The spelling of 16550928 in words is "sixteen million, five hundred fifty thousand, nine hundred twenty-eight".