70390624 has 24 divisors (see below), whose sum is σ = 139110048. Its totient is φ = 35061120.

The previous prime is 70390609. The next prime is 70390633. The reversal of 70390624 is 42609307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4614 + ... + 12730.

It is an arithmetic number, because the mean of its divisors is an integer number (5796252).

Almost surely, 2^70390624 is an apocalyptic number.

It is an amenable number.

70390624 is a deficient number, since it is larger than the sum of its proper divisors (68719424).

70390624 is a wasteful number, since it uses less digits than its factorization.

70390624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398 (or 8390 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 70390624 is about 8389.9120376795. The cubic root of 70390624 is about 412.8937145764.

The spelling of 70390624 in words is "seventy million, three hundred ninety thousand, six hundred twenty-four".