40534818 has 16 divisors (see below), whose sum is σ = 81147936. Its totient is φ = 13498560.

The previous prime is 40534789. The next prime is 40534831. The reversal of 40534818 is 81843504.

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, 5130 + ... + 10362.

It is an arithmetic number, because the mean of its divisors is an integer number (5071746).

Almost surely, 2^40534818 is an apocalyptic number.

40534818 is an abundant number, since it is smaller than the sum of its proper divisors (40613118).

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

40534818 is a wasteful number, since it uses less digits than its factorization.

40534818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529.

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

The square root of 40534818 is about 6366.6960034228. The cubic root of 40534818 is about 343.5126560853.

The spelling of 40534818 in words is "forty million, five hundred thirty-four thousand, eight hundred eighteen".