40318902 has 48 divisors (see below), whose sum is σ = 95881968. Its totient is φ = 12168000.

The previous prime is 40318891. The next prime is 40318909. The reversal of 40318902 is 20981304.

It is a super-2 number, since 2×40318902² = 3251227716971208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40318909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10777 + ... + 14027.

It is an arithmetic number, because the mean of its divisors is an integer number (1997541).

Almost surely, 2^40318902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40318902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47940984).

40318902 is an abundant number, since it is smaller than the sum of its proper divisors (55563066).

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

40318902 is a wasteful number, since it uses less digits than its factorization.

40318902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325 (or 3322 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40318902 is about 6349.7166865932. The cubic root of 40318902 is about 342.9016425872.

The spelling of 40318902 in words is "forty million, three hundred eighteen thousand, nine hundred two".