40001907318 has 16 divisors (see below), whose sum is σ = 80009158656. Its totient is φ = 13333078440.

The previous prime is 40001907313. The next prime is 40001907329. The reversal of 40001907318 is 81370910004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001907313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121846 + ... + 307977.

It is an arithmetic number, because the mean of its divisors is an integer number (5000572416).

Almost surely, 2^40001907318 is an apocalyptic number.

40001907318 is an abundant number, since it is smaller than the sum of its proper divisors (40007251338).

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

40001907318 is a wasteful number, since it uses less digits than its factorization.

40001907318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445339.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 40001907318 in words is "forty billion, one million, nine hundred seven thousand, three hundred eighteen".