16787428 has 12 divisors (see below), whose sum is σ = 33574912. Its totient is φ = 7194600.

The previous prime is 16787359. The next prime is 16787429. The reversal of 16787428 is 82478761.

16787428 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16787429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299748 + ... + 299803.

Almost surely, 2^16787428 is an apocalyptic number.

It is an amenable number.

16787428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16787428 is a wasteful number, since it uses less digits than its factorization.

16787428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599562 (or 599560 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 16787428 is about 4097.2463923958. The cubic root of 16787428 is about 256.0519303830.

The spelling of 16787428 in words is "sixteen million, seven hundred eighty-seven thousand, four hundred twenty-eight".