70400756 has 12 divisors (see below), whose sum is σ = 123296292. Its totient is φ = 35173248.

The previous prime is 70400749. The next prime is 70400767. The reversal of 70400756 is 65700407.

It can be written as a sum of positive squares in 2 ways, for example, as 49843600 + 20557156 = 7060^2 + 4534^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (10274691).

Almost surely, 2^70400756 is an apocalyptic number.

It is an amenable number.

70400756 is a deficient number, since it is larger than the sum of its proper divisors (52895536).

70400756 is a wasteful number, since it uses less digits than its factorization.

70400756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13570 (or 13568 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 70400756 is about 8390.5158363476. The cubic root of 70400756 is about 412.9135242147.

The spelling of 70400756 in words is "seventy million, four hundred thousand, seven hundred fifty-six".