70430644 has 24 divisors (see below), whose sum is σ = 130780160. Its totient is φ = 33094656.

The previous prime is 70430639. The next prime is 70430653. The reversal of 70430644 is 44603407.

It is a super-2 number, since 2×70430644² = 9920951228509472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6004 + ... + 13300.

Almost surely, 2^70430644 is an apocalyptic number.

It is an amenable number.

70430644 is a deficient number, since it is larger than the sum of its proper divisors (60349516).

70430644 is a wasteful number, since it uses less digits than its factorization.

70430644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447 (or 7445 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 70430644 is about 8392.2967059083. The cubic root of 70430644 is about 412.9719488400.

The spelling of 70430644 in words is "seventy million, four hundred thirty thousand, six hundred forty-four".