70312880 has 40 divisors (see below), whose sum is σ = 178341264. Its totient is φ = 25568000.

The previous prime is 70312877. The next prime is 70312883. The reversal of 70312880 is 8821307.

It is an interprime number because it is at equal distance from previous prime (70312877) and next prime (70312883).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (70312883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39071 + ... + 40830.

Almost surely, 2^70312880 is an apocalyptic number.

It is an amenable number.

70312880 is an abundant number, since it is smaller than the sum of its proper divisors (108028384).

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

70312880 is a wasteful number, since it uses less digits than its factorization.

70312880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79925 (or 79919 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 70312880 is about 8385.2775744158. The cubic root of 70312880 is about 412.7416496556.

It can be divided in two parts, 703 and 12880, that multiplied together give a triangular number (9054640 = T₄₂₅₅).

The spelling of 70312880 in words is "seventy million, three hundred twelve thousand, eight hundred eighty".