40743864 has 64 divisors (see below), whose sum is σ = 129350400. Its totient is φ = 11640672.

The previous prime is 40743863. The next prime is 40743893. The reversal of 40743864 is 46834704.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40743863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11962 + ... + 14985.

It is an arithmetic number, because the mean of its divisors is an integer number (2021100).

Almost surely, 2^40743864 is an apocalyptic number.

It is an amenable number.

40743864 is an abundant number, since it is smaller than the sum of its proper divisors (88606536).

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

40743864 is a wasteful number, since it uses less digits than its factorization.

40743864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969 (or 26959 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 40743864 is about 6383.0920406963. The cubic root of 40743864 is about 344.1021645353.

The spelling of 40743864 in words is "forty million, seven hundred forty-three thousand, eight hundred sixty-four".