40341157 has 4 divisors (see below), whose sum is σ = 40635756. Its totient is φ = 40046560.

The previous prime is 40341151. The next prime is 40341163. The reversal of 40341157 is 75114304.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40341151) and next prime (40341163).

It can be written as a sum of positive squares in 2 ways, for example, as 11600836 + 28740321 = 3406^2 + 5361^2 .

It is a cyclic number.

It is not a de Polignac number, because 40341157 - 2⁷ = 40341029 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 (40341151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147094 + ... + 147367.

It is an arithmetic number, because the mean of its divisors is an integer number (10158939).

Almost surely, 2^40341157 is an apocalyptic number.

It is an amenable number.

40341157 is a deficient number, since it is larger than the sum of its proper divisors (294599).

40341157 is a wasteful number, since it uses less digits than its factorization.

40341157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294598.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 40341157 is about 6351.4688852265. The cubic root of 40341157 is about 342.9647219538.

The spelling of 40341157 in words is "forty million, three hundred forty-one thousand, one hundred fifty-seven".