39457299020 has 96 divisors (see below), whose sum is σ = 89590717440. Its totient is φ = 14560282880.

The previous prime is 39457299001. The next prime is 39457299059. The reversal of 39457299020 is 2099275493.

It is a self number, because there is not a number n which added to its sum of digits gives 39457299020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1424705 + ... + 1452135.

It is an arithmetic number, because the mean of its divisors is an integer number (933236640).

Almost surely, 2^39457299020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39457299020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44795358720).

39457299020 is an abundant number, since it is smaller than the sum of its proper divisors (50133418420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39457299020 is a wasteful number, since it uses less digits than its factorization.

39457299020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27575 (or 27573 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 39457299020 in words is "thirty-nine billion, four hundred fifty-seven million, two hundred ninety-nine thousand, twenty".