31940341 has 4 divisors (see below), whose sum is σ = 32256684. Its totient is φ = 31624000.

The previous prime is 31940333. The next prime is 31940371. The reversal of 31940341 is 14304913.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22043025 + 9897316 = 4695^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 31940341 - 2³ = 31940333 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 (31940371) 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, 158020 + ... + 158221.

It is an arithmetic number, because the mean of its divisors is an integer number (8064171).

Almost surely, 2^31940341 is an apocalyptic number.

It is an amenable number.

31940341 is a deficient number, since it is larger than the sum of its proper divisors (316343).

31940341 is a wasteful number, since it uses less digits than its factorization.

31940341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316342.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 31940341 is about 5651.5786290204. The cubic root of 31940341 is about 317.2827902411.

The spelling of 31940341 in words is "thirty-one million, nine hundred forty thousand, three hundred forty-one".