40103944 has 8 divisors (see below), whose sum is σ = 75194910. Its totient is φ = 20051968.

The previous prime is 40103941. The next prime is 40103953. The reversal of 40103944 is 44930104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31472100 + 8631844 = 5610^2 + 2938^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40103941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506489 + ... + 2506504.

Almost surely, 2^40103944 is an apocalyptic number.

It is an amenable number.

40103944 is a deficient number, since it is larger than the sum of its proper divisors (35090966).

40103944 is a wasteful number, since it uses less digits than its factorization.

40103944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012999 (or 5012995 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40103944 is about 6332.7674834941. The cubic root of 40103944 is about 342.2911693383.

The spelling of 40103944 in words is "forty million, one hundred three thousand, nine hundred forty-four".