70474644 has 24 divisors (see below), whose sum is σ = 182712320. Its totient is φ = 23491512.

The previous prime is 70474637. The next prime is 70474661. The reversal of 70474644 is 44647407.

70474644 is a `hidden beast` number, since 7 + 0 + 4 + 7 + 4 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 70474599 and 70474608.

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 7 ways as a sum of consecutive naturals, for example, 326164 + ... + 326379.

Almost surely, 2^70474644 is an apocalyptic number.

It is an amenable number.

70474644 is an abundant number, since it is smaller than the sum of its proper divisors (112237676).

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

70474644 is a wasteful number, since it uses less digits than its factorization.

70474644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652556 (or 652548 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 70474644 is about 8394.9177482570. The cubic root of 70474644 is about 413.0579293267.

The spelling of 70474644 in words is "seventy million, four hundred seventy-four thousand, six hundred forty-four".