40040503398 has 24 divisors (see below), whose sum is σ = 99147913488. Its totient is φ = 11440143792.

The previous prime is 40040503381. The next prime is 40040503417. The reversal of 40040503398 is 89330504004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158890761 + ... + 158891012.

It is an arithmetic number, because the mean of its divisors is an integer number (4131163062).

Almost surely, 2^40040503398 is an apocalyptic number.

40040503398 is an abundant number, since it is smaller than the sum of its proper divisors (59107410090).

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

40040503398 is a wasteful number, since it uses less digits than its factorization.

40040503398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317781788 (or 317781785 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 40040503398 in words is "forty billion, forty million, five hundred three thousand, three hundred ninety-eight".