39503948434 has 16 divisors (see below), whose sum is σ = 60911754048. Its totient is φ = 19200983472.

The previous prime is 39503948423. The next prime is 39503948443. The reversal of 39503948434 is 43484930593.

It is a happy number.

It is a super-2 number, since 2×39503948434² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154582 + ... + 320785.

It is an arithmetic number, because the mean of its divisors is an integer number (3806984628).

Almost surely, 2^39503948434 is an apocalyptic number.

39503948434 is a deficient number, since it is larger than the sum of its proper divisors (21407805614).

39503948434 is a wasteful number, since it uses less digits than its factorization.

39503948434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476529.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 39503948434 in words is "thirty-nine billion, five hundred three million, nine hundred forty-eight thousand, four hundred thirty-four".