70244728 has 16 divisors (see below), whose sum is σ = 136251000. Its totient is φ = 33911136.

The previous prime is 70244717. The next prime is 70244749. The reversal of 70244728 is 82744207.

It is a junction number, because it is equal to n+sod(n) for n = 70244693 and 70244702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151158 + ... + 151621.

Almost surely, 2^70244728 is an apocalyptic number.

It is an amenable number.

70244728 is a deficient number, since it is larger than the sum of its proper divisors (66006272).

70244728 is a wasteful number, since it uses less digits than its factorization.

70244728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302814 (or 302810 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 70244728 is about 8381.2128000666. The cubic root of 70244728 is about 412.6082541713.

The spelling of 70244728 in words is "seventy million, two hundred forty-four thousand, seven hundred twenty-eight".