70490512 has 20 divisors (see below), whose sum is σ = 136705536. Its totient is φ = 35211680.

The previous prime is 70490509. The next prime is 70490527. The reversal of 70490512 is 21509407.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32337 + ... + 34447.

Almost surely, 2^70490512 is an apocalyptic number.

It is an amenable number.

70490512 is a deficient number, since it is larger than the sum of its proper divisors (66215024).

70490512 is a wasteful number, since it uses less digits than its factorization.

70490512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206 (or 4200 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70490512 is about 8395.8627906845. The cubic root of 70490512 is about 413.0889282363.

Adding to 70490512 its reverse (21509407), we get a palindrome (91999919).

The spelling of 70490512 in words is "seventy million, four hundred ninety thousand, five hundred twelve".