163232240 has 20 divisors (see below), whose sum is σ = 379515144. Its totient is φ = 65292864.

The previous prime is 163232239. The next prime is 163232273. The reversal of 163232240 is 42232361.

It is a tau number, because it is divible by the number of its divisors (20).

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, 1020122 + ... + 1020281.

Almost surely, 2^163232240 is an apocalyptic number.

163232240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163232240 is an abundant number, since it is smaller than the sum of its proper divisors (216282904).

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

163232240 is a wasteful number, since it uses less digits than its factorization.

163232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040416 (or 2040410 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 163232240 is about 12776.2373177708. The cubic root of 163232240 is about 546.5148663054.

The spelling of 163232240 in words is "one hundred sixty-three million, two hundred thirty-two thousand, two hundred forty".