40437944 has 8 divisors (see below), whose sum is σ = 75821160. Its totient is φ = 20218968.

The previous prime is 40437913. The next prime is 40437953. The reversal of 40437944 is 44973404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527364 + ... + 2527379.

It is an arithmetic number, because the mean of its divisors is an integer number (9477645).

Almost surely, 2^40437944 is an apocalyptic number.

It is an amenable number.

40437944 is a deficient number, since it is larger than the sum of its proper divisors (35383216).

40437944 is a wasteful number, since it uses less digits than its factorization.

40437944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054749 (or 5054745 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 40437944 is about 6359.0835817750. The cubic root of 40437944 is about 343.2387846186.

The spelling of 40437944 in words is "forty million, four hundred thirty-seven thousand, nine hundred forty-four".