215460560 has 40 divisors (see below), whose sum is σ = 572510976. Its totient is φ = 73872000.

The previous prime is 215460559. The next prime is 215460563. The reversal of 215460560 is 65064512.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215460563) 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, 191816 + ... + 192935.

Almost surely, 2^215460560 is an apocalyptic number.

215460560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215460560 is an abundant number, since it is smaller than the sum of its proper divisors (357050416).

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

215460560 is a wasteful number, since it uses less digits than its factorization.

215460560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384771 (or 384765 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 215460560 is about 14678.5748627038. The cubic root of 215460560 is about 599.5001021377.

The spelling of 215460560 in words is "two hundred fifteen million, four hundred sixty thousand, five hundred sixty".