70644424 has 8 divisors (see below), whose sum is σ = 132458310. Its totient is φ = 35322208.

The previous prime is 70644347. The next prime is 70644467. The reversal of 70644424 is 42444607.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 17791524 = 7270^2 + 4218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4415269 + ... + 4415284.

Almost surely, 2^70644424 is an apocalyptic number.

It is an amenable number.

70644424 is a deficient number, since it is larger than the sum of its proper divisors (61813886).

70644424 is a wasteful number, since it uses less digits than its factorization.

70644424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830559 (or 8830555 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 70644424 is about 8405.0237358380. The cubic root of 70644424 is about 413.3893616961.

The spelling of 70644424 in words is "seventy million, six hundred forty-four thousand, four hundred twenty-four".