40571139 has 16 divisors (see below), whose sum is σ = 62059520. Its totient is φ = 23094720.

The previous prime is 40571131. The next prime is 40571143. The reversal of 40571139 is 93117504.

It is not a de Polignac number, because 40571139 - 2³ = 40571131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40571131) 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, 2127 + ... + 9255.

It is an arithmetic number, because the mean of its divisors is an integer number (3878720).

Almost surely, 2^40571139 is an apocalyptic number.

40571139 is a deficient number, since it is larger than the sum of its proper divisors (21488381).

40571139 is a wasteful number, since it uses less digits than its factorization.

40571139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 40571139 is about 6369.5477861462. The cubic root of 40571139 is about 343.6152263289.

The spelling of 40571139 in words is "forty million, five hundred seventy-one thousand, one hundred thirty-nine".