16968540 has 24 divisors (see below), whose sum is σ = 47512080. Its totient is φ = 4524928.

The previous prime is 16968521. The next prime is 16968557. The reversal of 16968540 is 4586961.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 141345 + ... + 141464.

It is an arithmetic number, because the mean of its divisors is an integer number (1979670).

Almost surely, 2^16968540 is an apocalyptic number.

16968540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16968540 is an abundant number, since it is smaller than the sum of its proper divisors (30543540).

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

16968540 is a wasteful number, since it uses less digits than its factorization.

16968540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282821 (or 282819 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 16968540 is about 4119.2887735627. The cubic root of 16968540 is about 256.9694483407.

The spelling of 16968540 in words is "sixteen million, nine hundred sixty-eight thousand, five hundred forty".