40245031998 has 24 divisors (see below), whose sum is σ = 88044151728. Its totient is φ = 13284767232.

The previous prime is 40245031987. The next prime is 40245032021. The reversal of 40245031998 is 89913054204.

40245031998 is a `hidden beast` number, since 4 + 0 + 2 + 450 + 3 + 199 + 8 = 666.

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, 10851715 + ... + 10855422.

It is an arithmetic number, because the mean of its divisors is an integer number (3668506322).

Almost surely, 2^40245031998 is an apocalyptic number.

40245031998 is an abundant number, since it is smaller than the sum of its proper divisors (47799119730).

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

40245031998 is a wasteful number, since it uses less digits than its factorization.

40245031998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21707248 (or 21707245 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 40245031998 in words is "forty billion, two hundred forty-five million, thirty-one thousand, nine hundred ninety-eight".