1247314464 has 360 divisors, whose sum is σ = 4173043644. Its totient is φ = 364953600.

The previous prime is 1247314391. The next prime is 1247314487. The reversal of 1247314464 is 4644137421.

1247314464 is a `hidden beast` number, since 124 + 73 + 1 + 4 + 464 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1132995600 + 114318864 = 33660^2 + 10692^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12858864 + ... + 12858960.

Almost surely, 2^1247314464 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 1247314464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2086521822).

1247314464 is an abundant number, since it is smaller than the sum of its proper divisors (2925729180).

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

1247314464 is a wasteful number, since it uses less digits than its factorization.

1247314464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 154 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 1247314464 is about 35317.3394241412. The cubic root of 1247314464 is about 1076.4453503039.

The spelling of 1247314464 in words is "one billion, two hundred forty-seven million, three hundred fourteen thousand, four hundred sixty-four".