16427628 has 144 divisors (see below), whose sum is σ = 51717120. Its totient is φ = 4292352.

The previous prime is 16427611. The next prime is 16427639. The reversal of 16427628 is 82672461.

16427628 is a `hidden beast` number, since 1 + 6 + 4 + 27 + 628 = 666.

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 = 16427592 and 16427601.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225000 + ... + 225072.

Almost surely, 2^16427628 is an apocalyptic number.

16427628 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 16427628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25858560).

16427628 is an abundant number, since it is smaller than the sum of its proper divisors (35289492).

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

16427628 is a wasteful number, since it uses less digits than its factorization.

16427628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 151 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 16427628 is about 4053.1010350101. The cubic root of 16427628 is about 254.2094083932.

The spelling of 16427628 in words is "sixteen million, four hundred twenty-seven thousand, six hundred twenty-eight".