1215570480 has 40 divisors (see below), whose sum is σ = 3768269232. Its totient is φ = 324152064.

The previous prime is 1215570469. The next prime is 1215570497. The reversal of 1215570480 is 840755121.

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

It is a super-2 number, since 2×1215570480² = 2955223183694860800, which contains 22 as substring.

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, 2532199 + ... + 2532678.

Almost surely, 2^1215570480 is an apocalyptic number.

1215570480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215570480 is an abundant number, since it is smaller than the sum of its proper divisors (2552698752).

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

1215570480 is a wasteful number, since it uses less digits than its factorization.

1215570480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5064893 (or 5064887 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 1215570480 is about 34865.0323390069. The cubic root of 1215570480 is about 1067.2349723342.

The spelling of 1215570480 in words is "one billion, two hundred fifteen million, five hundred seventy thousand, four hundred eighty".