16490628 has 120 divisors (see below), whose sum is σ = 53828544. Its totient is φ = 4276800.

The previous prime is 16490623. The next prime is 16490633. The reversal of 16490628 is 82609461.

16490628 is a `hidden beast` number, since 1 + 649 + 0 + 6 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (16490623) and next prime (16490633).

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 = 16490592 and 16490601.

It is not an unprimeable number, because it can be changed into a prime (16490623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24618 + ... + 25278.

Almost surely, 2^16490628 is an apocalyptic number.

16490628 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 16490628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26914272).

16490628 is an abundant number, since it is smaller than the sum of its proper divisors (37337916).

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

16490628 is a wasteful number, since it uses less digits than its factorization.

16490628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 16490628 is about 4060.8654250049. The cubic root of 16490628 is about 254.5339584635.

The spelling of 16490628 in words is "sixteen million, four hundred ninety thousand, six hundred twenty-eight".