39240440464 has 15 divisors (see below), whose sum is σ = 76029888643. Its totient is φ = 19619824048.

The previous prime is 39240440443. The next prime is 39240440497. The reversal of 39240440464 is 46404404293.

The square root of 39240440464 is 198092.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 767607 + ... + 817129.

Almost surely, 2^39240440464 is an apocalyptic number.

39240440464 is the 198092-nd square number.

It is an amenable number.

39240440464 is a deficient number, since it is larger than the sum of its proper divisors (36789448179).

39240440464 is an frugal number, since it uses more digits than its factorization.

39240440464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99054 (or 49525 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 39240440464 in words is "thirty-nine billion, two hundred forty million, four hundred forty thousand, four hundred sixty-four".