1219625264 has 40 divisors (see below), whose sum is σ = 2776145232. Its totient is φ = 511729920.

The previous prime is 1219625243. The next prime is 1219625273. The reversal of 1219625264 is 4625269121.

It is a happy number.

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, 264239 + ... + 268814.

Almost surely, 2^1219625264 is an apocalyptic number.

It is an amenable number.

1219625264 is an abundant number, since it is smaller than the sum of its proper divisors (1556519968).

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

1219625264 is a wasteful number, since it uses less digits than its factorization.

1219625264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533085 (or 533079 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 1219625264 is about 34923.1336509197. The cubic root of 1219625264 is about 1068.4203155146.

The spelling of 1219625264 in words is "one billion, two hundred nineteen million, six hundred twenty-five thousand, two hundred sixty-four".