40400881284 has 24 divisors (see below), whose sum is σ = 94316412960. Its totient is φ = 13460147584.

The previous prime is 40400881267. The next prime is 40400881291. The reversal of 40400881284 is 48218800404.

It is a super-2 number, since 2×40400881284² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826869 + ... + 874364.

It is an arithmetic number, because the mean of its divisors is an integer number (3929850540).

Almost surely, 2^40400881284 is an apocalyptic number.

It is an amenable number.

40400881284 is an abundant number, since it is smaller than the sum of its proper divisors (53915531676).

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

40400881284 is a wasteful number, since it uses less digits than its factorization.

40400881284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703219 (or 1703217 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 39.

The spelling of 40400881284 in words is "forty billion, four hundred million, eight hundred eighty-one thousand, two hundred eighty-four".