40153944 has 16 divisors (see below), whose sum is σ = 100384920. Its totient is φ = 13384640.

The previous prime is 40153943. The next prime is 40153957. The reversal of 40153944 is 44935104.

It is a super-2 number, since 2×40153944² = 3224678437510272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40153943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836517 + ... + 836564.

Almost surely, 2^40153944 is an apocalyptic number.

It is an amenable number.

40153944 is an abundant number, since it is smaller than the sum of its proper divisors (60230976).

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

40153944 is a wasteful number, since it uses less digits than its factorization.

40153944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673090 (or 1673086 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 40153944 is about 6336.7139749242. The cubic root of 40153944 is about 342.4333619267.

It can be divided in two parts, 401 and 53944, that added together give a palindrome (54345).

The spelling of 40153944 in words is "forty million, one hundred fifty-three thousand, nine hundred forty-four".