40013926998 has 32 divisors (see below), whose sum is σ = 81307449216. Its totient is φ = 13125961728.

The previous prime is 40013926991. The next prime is 40013927029. The reversal of 40013926998 is 89962931004.

It is a super-2 number, since 2×40013926998² (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 40013926998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013926991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28336 + ... + 284307.

It is an arithmetic number, because the mean of its divisors is an integer number (2540857788).

Almost surely, 2^40013926998 is an apocalyptic number.

40013926998 is an abundant number, since it is smaller than the sum of its proper divisors (41293522218).

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

40013926998 is a wasteful number, since it uses less digits than its factorization.

40013926998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312988.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 40013926998 in words is "forty billion, thirteen million, nine hundred twenty-six thousand, nine hundred ninety-eight".