40369868 has 24 divisors (see below), whose sum is σ = 88080384. Its totient is φ = 15728400.

The previous prime is 40369867. The next prime is 40369897. The reversal of 40369868 is 86896304.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (40369867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65228 + ... + 65843.

It is an arithmetic number, because the mean of its divisors is an integer number (3670016).

Almost surely, 2^40369868 is an apocalyptic number.

It is an amenable number.

40369868 is an abundant number, since it is smaller than the sum of its proper divisors (47710516).

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

40369868 is a wasteful number, since it uses less digits than its factorization.

40369868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131093 (or 131091 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 40369868 is about 6353.7286690572. The cubic root of 40369868 is about 343.0460658861.

The spelling of 40369868 in words is "forty million, three hundred sixty-nine thousand, eight hundred sixty-eight".