40313725 has 12 divisors (see below), whose sum is σ = 52620640. Its totient is φ = 30553200.

The previous prime is 40313723. The next prime is 40313743. The reversal of 40313725 is 52731304.

It is not a de Polignac number, because 40313725 - 2¹ = 40313723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 40313725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40313723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41961 + ... + 42910.

Almost surely, 2^40313725 is an apocalyptic number.

It is an amenable number.

40313725 is a deficient number, since it is larger than the sum of its proper divisors (12306915).

40313725 is a wasteful number, since it uses less digits than its factorization.

40313725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84900 (or 84895 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40313725 is about 6349.3090175231. The cubic root of 40313725 is about 342.8869656185.

The spelling of 40313725 in words is "forty million, three hundred thirteen thousand, seven hundred twenty-five".