1260488664 has 96 divisors (see below), whose sum is σ = 3664411920. Its totient is φ = 390002688.

The previous prime is 1260488659. The next prime is 1260488693. The reversal of 1260488664 is 4668840621.

1260488664 = 322² + 323² + ... + 1562².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82299 + ... + 96405.

Almost surely, 2^1260488664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260488664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832205960).

1260488664 is an abundant number, since it is smaller than the sum of its proper divisors (2403923256).

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

1260488664 is a wasteful number, since it uses less digits than its factorization.

1260488664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14209 (or 14202 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 1260488664 is about 35503.3613056567. The cubic root of 1260488664 is about 1080.2219091334.

The spelling of 1260488664 in words is "one billion, two hundred sixty million, four hundred eighty-eight thousand, six hundred sixty-four".