70488730 has 32 divisors (see below), whose sum is σ = 141055488. Its totient is φ = 25185600.

The previous prime is 70488703. The next prime is 70488731. The reversal of 70488730 is 3788407.

It is a super-2 number, since 2×70488730² = 9937322114025800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 70488730.

It is not an unprimeable number, because it can be changed into a prime (70488731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4716 + ... + 12775.

It is an arithmetic number, because the mean of its divisors is an integer number (4407984).

Almost surely, 2^70488730 is an apocalyptic number.

70488730 is an abundant number, since it is smaller than the sum of its proper divisors (70566758).

70488730 is a wasteful number, since it uses less digits than its factorization.

70488730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 70488730 is about 8395.7566663166. The cubic root of 70488730 is about 413.0854472445.

The spelling of 70488730 in words is "seventy million, four hundred eighty-eight thousand, seven hundred thirty".