39040157 has 8 divisors (see below), whose sum is σ = 42153720. Its totient is φ = 35942400.

The previous prime is 39040151. The next prime is 39040207. The reversal of 39040157 is 75104093.

It can be written as a sum of positive squares in 4 ways, for example, as 10374841 + 28665316 = 3221^2 + 5354^2 .

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

It is not a de Polignac number, because 39040157 - 2²⁰ = 37991581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39040151) 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, 1469 + ... + 8957.

It is an arithmetic number, because the mean of its divisors is an integer number (5269215).

Almost surely, 2^39040157 is an apocalyptic number.

It is an amenable number.

39040157 is a deficient number, since it is larger than the sum of its proper divisors (3113563).

39040157 is a wasteful number, since it uses less digits than its factorization.

39040157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7903.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 39040157 is about 6248.2123043315. The cubic root of 39040157 is about 339.2374982880.

The spelling of 39040157 in words is "thirty-nine million, forty thousand, one hundred fifty-seven".