215034560 has 56 divisors (see below), whose sum is σ = 551450256. Its totient is φ = 79395840.

The previous prime is 215034559. The next prime is 215034601. The reversal of 215034560 is 65430512.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21686 + ... + 30005.

It is an arithmetic number, because the mean of its divisors is an integer number (9847326).

Almost surely, 2^215034560 is an apocalyptic number.

215034560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215034560 is an abundant number, since it is smaller than the sum of its proper divisors (336415696).

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

215034560 is a wasteful number, since it uses less digits than its factorization.

215034560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51721 (or 51711 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 215034560 is about 14664.0567374789. The cubic root of 215034560 is about 599.1047389178.

The spelling of 215034560 in words is "two hundred fifteen million, thirty-four thousand, five hundred sixty".