40713239 has 8 divisors (see below), whose sum is σ = 46865280. Its totient is φ = 34645176.

The previous prime is 40713227. The next prime is 40713241. The reversal of 40713239 is 93231704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40713239 - 2⁸ = 40712983 is a prime.

It is a super-2 number, since 2×40713239² = 3315135659742242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40713259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19949 + ... + 21894.

It is an arithmetic number, because the mean of its divisors is an integer number (5858160).

Almost surely, 2^40713239 is an apocalyptic number.

40713239 is a deficient number, since it is larger than the sum of its proper divisors (6152041).

40713239 is a wasteful number, since it uses less digits than its factorization.

40713239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41989.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 40713239 is about 6380.6926739971. The cubic root of 40713239 is about 344.0159284809.

The spelling of 40713239 in words is "forty million, seven hundred thirteen thousand, two hundred thirty-nine".