40531884 has 12 divisors (see below), whose sum is σ = 94574424. Its totient is φ = 13510624.

The previous prime is 40531871. The next prime is 40531889. The reversal of 40531884 is 48813504.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40531889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688817 + ... + 1688840.

It is an arithmetic number, because the mean of its divisors is an integer number (7881202).

Almost surely, 2^40531884 is an apocalyptic number.

It is an amenable number.

40531884 is an abundant number, since it is smaller than the sum of its proper divisors (54042540).

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

40531884 is a wasteful number, since it uses less digits than its factorization.

40531884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377664 (or 3377662 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 40531884 is about 6366.4655814667. The cubic root of 40531884 is about 343.5043678161.

The spelling of 40531884 in words is "forty million, five hundred thirty-one thousand, eight hundred eighty-four".