215057948 has 24 divisors (see below), whose sum is σ = 430639104. Its totient is φ = 92055600.

The previous prime is 215057917. The next prime is 215057971. The reversal of 215057948 is 849750512.

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, 21293 + ... + 29723.

It is an arithmetic number, because the mean of its divisors is an integer number (17943296).

Almost surely, 2^215057948 is an apocalyptic number.

215057948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215057948 is an abundant number, since it is smaller than the sum of its proper divisors (215581156).

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

215057948 is a wasteful number, since it uses less digits than its factorization.

215057948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353 (or 9351 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 215057948 is about 14664.8541758860. The cubic root of 215057948 is about 599.1264584554.

The spelling of 215057948 in words is "two hundred fifteen million, fifty-seven thousand, nine hundred forty-eight".