39457259444 has 24 divisors (see below), whose sum is σ = 69916210560. Its totient is φ = 19481431424.

The previous prime is 39457259407. The next prime is 39457259477. The reversal of 39457259444 is 44495275493.

It is a happy number.

It is a super-2 number, since 2×39457259444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39457259444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678917 + ... + 734739.

It is an arithmetic number, because the mean of its divisors is an integer number (2913175440).

Almost surely, 2^39457259444 is an apocalyptic number.

It is an amenable number.

39457259444 is a deficient number, since it is larger than the sum of its proper divisors (30458951116).

39457259444 is a wasteful number, since it uses less digits than its factorization.

39457259444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58039 (or 58037 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 56.

The spelling of 39457259444 in words is "thirty-nine billion, four hundred fifty-seven million, two hundred fifty-nine thousand, four hundred forty-four".