16504740 has 72 divisors (see below), whose sum is σ = 57220800. Its totient is φ = 3772224.

The previous prime is 16504729. The next prime is 16504757. The reversal of 16504740 is 4740561.

16504740 is a `hidden beast` number, since 1 + 650 + 4 + 7 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5290 + ... + 7809.

Almost surely, 2^16504740 is an apocalyptic number.

16504740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16504740 is an abundant number, since it is smaller than the sum of its proper divisors (40716060).

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

16504740 is a wasteful number, since it uses less digits than its factorization.

16504740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13121 (or 13116 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 16504740 is about 4062.6026140887. The cubic root of 16504740 is about 254.6065443202.

The spelling of 16504740 in words is "sixteen million, five hundred four thousand, seven hundred forty".