215054232 has 32 divisors (see below), whose sum is σ = 561012480. Its totient is φ = 68567840.

The previous prime is 215054221. The next prime is 215054237. The reversal of 215054232 is 232450512.

It is a super-2 number, since 2×215054232² = 92496645402219648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215054237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194244 + ... + 195347.

It is an arithmetic number, because the mean of its divisors is an integer number (17531640).

Almost surely, 2^215054232 is an apocalyptic number.

It is an amenable number.

215054232 is an abundant number, since it is smaller than the sum of its proper divisors (345958248).

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

215054232 is a wasteful number, since it uses less digits than its factorization.

215054232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389623 (or 389619 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 215054232 is about 14664.7274778633. The cubic root of 215054232 is about 599.1230076541.

The spelling of 215054232 in words is "two hundred fifteen million, fifty-four thousand, two hundred thirty-two".