70421874 has 32 divisors (see below), whose sum is σ = 144672000. Its totient is φ = 22840272.

The previous prime is 70421843. The next prime is 70421893. The reversal of 70421874 is 47812407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128469 + ... + 129015.

It is an arithmetic number, because the mean of its divisors is an integer number (4521000).

Almost surely, 2^70421874 is an apocalyptic number.

70421874 is an abundant number, since it is smaller than the sum of its proper divisors (74250126).

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

70421874 is a wasteful number, since it uses less digits than its factorization.

70421874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 70421874 is about 8391.7741866664. The cubic root of 70421874 is about 412.9548070860.

It can be divided in two parts, 704 and 21874, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 70421874 in words is "seventy million, four hundred twenty-one thousand, eight hundred seventy-four".