39720514 has 8 divisors (see below), whose sum is σ = 59609088. Its totient is φ = 19850820.

The previous prime is 39720503. The next prime is 39720523. The reversal of 39720514 is 41502793.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3199 + ... + 9469.

It is an arithmetic number, because the mean of its divisors is an integer number (7451136).

Almost surely, 2^39720514 is an apocalyptic number.

39720514 is a deficient number, since it is larger than the sum of its proper divisors (19888574).

39720514 is a wasteful number, since it uses less digits than its factorization.

39720514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9440.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 39720514 is about 6302.4212807460. The cubic root of 39720514 is about 341.1968030607.

The spelling of 39720514 in words is "thirty-nine million, seven hundred twenty thousand, five hundred fourteen".