70402064 has 10 divisors (see below), whose sum is σ = 136404030. Its totient is φ = 35201024.

The previous prime is 70402063. The next prime is 70402067. The reversal of 70402064 is 46020407.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 15523600 = 7408^2 + 3940^2 .

It is not an unprimeable number, because it can be changed into a prime (70402061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200049 + ... + 2200080.

It is an arithmetic number, because the mean of its divisors is an integer number (13640403).

Almost surely, 2^70402064 is an apocalyptic number.

It is an amenable number.

70402064 is a deficient number, since it is larger than the sum of its proper divisors (66001966).

70402064 is a wasteful number, since it uses less digits than its factorization.

70402064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400137 (or 4400131 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 70402064 is about 8390.5937811337. The cubic root of 70402064 is about 412.9160814199.

The spelling of 70402064 in words is "seventy million, four hundred two thousand, sixty-four".