16232540 has 12 divisors (see below), whose sum is σ = 34088376. Its totient is φ = 6493008.

The previous prime is 16232537. The next prime is 16232551. The reversal of 16232540 is 4523261.

It is a congruent number.

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, 405794 + ... + 405833.

It is an arithmetic number, because the mean of its divisors is an integer number (2840698).

Almost surely, 2^16232540 is an apocalyptic number.

16232540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16232540 is an abundant number, since it is smaller than the sum of its proper divisors (17855836).

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

16232540 is a wasteful number, since it uses less digits than its factorization.

16232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811636 (or 811634 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 16232540 is about 4028.9626456447. The cubic root of 16232540 is about 253.1991017108.

The spelling of 16232540 in words is "sixteen million, two hundred thirty-two thousand, five hundred forty".