16924840 has 16 divisors (see below), whose sum is σ = 38080980. Its totient is φ = 6769920.

The previous prime is 16924837. The next prime is 16924867. The reversal of 16924840 is 4842961.

It can be written as a sum of positive squares in 2 ways, for example, as 14122564 + 2802276 = 3758^2 + 1674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16924796 and 16924805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211521 + ... + 211600.

Almost surely, 2^16924840 is an apocalyptic number.

16924840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16924840 is an abundant number, since it is smaller than the sum of its proper divisors (21156140).

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

16924840 is a wasteful number, since it uses less digits than its factorization.

16924840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423132 (or 423128 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 16924840 is about 4113.9810403063. The cubic root of 16924840 is about 256.7486629197.

The spelling of 16924840 in words is "sixteen million, nine hundred twenty-four thousand, eight hundred forty".