16996040 has 32 divisors (see below), whose sum is σ = 38967480. Its totient is φ = 6669312.

The previous prime is 16996033. The next prime is 16996069. The reversal of 16996040 is 4069961.

It can be written as a sum of positive squares in 4 ways, for example, as 15413476 + 1582564 = 3926^2 + 1258^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889 + ... + 6128.

Almost surely, 2^16996040 is an apocalyptic number.

16996040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16996040 is an abundant number, since it is smaller than the sum of its proper divisors (21971440).

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

16996040 is a wasteful number, since it uses less digits than its factorization.

16996040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8081 (or 8077 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 16996040 is about 4122.6253771110. The cubic root of 16996040 is about 257.1081922701.

The spelling of 16996040 in words is "sixteen million, nine hundred ninety-six thousand, forty".