40253724 has 36 divisors (see below), whose sum is σ = 116289264. Its totient is φ = 11500992.

The previous prime is 40253713. The next prime is 40253737. The reversal of 40253724 is 42735204.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79617 + ... + 80120.

Almost surely, 2^40253724 is an apocalyptic number.

It is an amenable number.

40253724 is an abundant number, since it is smaller than the sum of its proper divisors (76035540).

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

40253724 is a wasteful number, since it uses less digits than its factorization.

40253724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159754 (or 159749 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 40253724 is about 6344.5822557518. The cubic root of 40253724 is about 342.7167690236.

Adding to 40253724 its reverse (42735204), we get a palindrome (82988928).

The spelling of 40253724 in words is "forty million, two hundred fifty-three thousand, seven hundred twenty-four".