40252707 has 54 divisors (see below), whose sum is σ = 68115684. Its totient is φ = 23736240.

The previous prime is 40252699. The next prime is 40252717. The reversal of 40252707 is 70725204.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 40252707 - 2³ = 40252699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40252717) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1087893 + ... + 1087929.

Almost surely, 2^40252707 is an apocalyptic number.

40252707 is a deficient number, since it is larger than the sum of its proper divisors (27862977).

40252707 is an equidigital number, since it uses as much as digits as its factorization.

40252707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40252707 is about 6344.5021081248. The cubic root of 40252707 is about 342.7138827822.

Multiplying 40252707 by its sum of digits (27), we get a square (1086823089 = 32967²).

40252707 divided by its sum of digits (27) gives a square (1490841 = 1221²).

The spelling of 40252707 in words is "forty million, two hundred fifty-two thousand, seven hundred seven".