70431264 has 36 divisors (see below), whose sum is σ = 200289726. Its totient is φ = 23476992.

The previous prime is 70431259. The next prime is 70431281. The reversal of 70431264 is 46213407.

It can be written as a sum of positive squares in only one way, i.e., 67568400 + 2862864 = 8220^2 + 1692^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121989 + ... + 122564.

Almost surely, 2^70431264 is an apocalyptic number.

It is an amenable number.

70431264 is an abundant number, since it is smaller than the sum of its proper divisors (129858462).

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

70431264 is a wasteful number, since it uses less digits than its factorization.

70431264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244569 (or 244558 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 70431264 is about 8392.3336444639. Note that the first 3 decimals coincide. The cubic root of 70431264 is about 412.9731606320.

The spelling of 70431264 in words is "seventy million, four hundred thirty-one thousand, two hundred sixty-four".