39730970 has 32 divisors (see below), whose sum is σ = 74003328. Its totient is φ = 15346368.

The previous prime is 39730967. The next prime is 39730991. The reversal of 39730970 is 7903793.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61469 + ... + 62111.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^39730970 is an apocalyptic number.

39730970 is a deficient number, since it is larger than the sum of its proper divisors (34272358).

39730970 is a wasteful number, since it uses less digits than its factorization.

39730970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 39730970 is about 6303.2507486217. The cubic root of 39730970 is about 341.2267392357.

The spelling of 39730970 in words is "thirty-nine million, seven hundred thirty thousand, nine hundred seventy".