70530724 has 48 divisors (see below), whose sum is σ = 138801600. Its totient is φ = 31088000.

The previous prime is 70530721. The next prime is 70530743. The reversal of 70530724 is 42703507.

It is a junction number, because it is equal to n+sod(n) for n = 70530692 and 70530701.

It is not an unprimeable number, because it can be changed into a prime (70530721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262062 + ... + 262330.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 2^70530724 is an apocalyptic number.

It is an amenable number.

70530724 is a deficient number, since it is larger than the sum of its proper divisors (68270876).

70530724 is a wasteful number, since it uses less digits than its factorization.

70530724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 70530724 is about 8398.2572001577. The cubic root of 70530724 is about 413.1674635070.

The spelling of 70530724 in words is "seventy million, five hundred thirty thousand, seven hundred twenty-four".