1215370460 has 24 divisors (see below), whose sum is σ = 2702412720. Its totient is φ = 457551104.

The previous prime is 1215370451. The next prime is 1215370529. The reversal of 1215370460 is 640735121.

It is a super-2 number, since 2×1215370460² = 2954250710081223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786970 + ... + 1787649.

It is an arithmetic number, because the mean of its divisors is an integer number (112600530).

Almost surely, 2^1215370460 is an apocalyptic number.

1215370460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215370460 is an abundant number, since it is smaller than the sum of its proper divisors (1487042260).

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

1215370460 is a wasteful number, since it uses less digits than its factorization.

1215370460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574645 (or 3574643 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1215370460 is about 34862.1637308989. The cubic root of 1215370460 is about 1067.1764319061.

The spelling of 1215370460 in words is "one billion, two hundred fifteen million, three hundred seventy thousand, four hundred sixty".