215053344 has 72 divisors (see below), whose sum is σ = 667163952. Its totient is φ = 65166720.

The previous prime is 215053337. The next prime is 215053367. The reversal of 215053344 is 443350512.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30774 + ... + 37109.

It is an arithmetic number, because the mean of its divisors is an integer number (9266166).

Almost surely, 2^215053344 is an apocalyptic number.

215053344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215053344 is an abundant number, since it is smaller than the sum of its proper divisors (452110608).

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

215053344 is a wasteful number, since it uses less digits than its factorization.

215053344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67910 (or 67899 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 215053344 is about 14664.6972011017. The cubic root of 215053344 is about 599.1221830219.

The spelling of 215053344 in words is "two hundred fifteen million, fifty-three thousand, three hundred forty-four".