40252407 has 16 divisors (see below), whose sum is σ = 58019808. Its totient is φ = 24675840.

The previous prime is 40252403. The next prime is 40252417. The reversal of 40252407 is 70425204.

It is not a de Polignac number, because 40252407 - 2² = 40252403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40252403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9123 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (3626238).

Almost surely, 2^40252407 is an apocalyptic number.

40252407 is a deficient number, since it is larger than the sum of its proper divisors (17767401).

40252407 is a wasteful number, since it uses less digits than its factorization.

40252407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40252407 is about 6344.4784655636. The cubic root of 40252407 is about 342.7130313743.

The spelling of 40252407 in words is "forty million, two hundred fifty-two thousand, four hundred seven".