1215472764 has 48 divisors (see below), whose sum is σ = 3099559680. Its totient is φ = 367655040.

The previous prime is 1215472729. The next prime is 1215472793. The reversal of 1215472764 is 4672745121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67017 + ... + 83199.

It is an arithmetic number, because the mean of its divisors is an integer number (64574160).

Almost surely, 2^1215472764 is an apocalyptic number.

It is an amenable number.

1215472764 is an abundant number, since it is smaller than the sum of its proper divisors (1884086916).

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

1215472764 is a wasteful number, since it uses less digits than its factorization.

1215472764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770 (or 16768 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 1215472764 is about 34863.6309640863. The cubic root of 1215472764 is about 1067.2063743141.

The spelling of 1215472764 in words is "one billion, two hundred fifteen million, four hundred seventy-two thousand, seven hundred sixty-four".