40331371 has 4 divisors (see below), whose sum is σ = 40439872. Its totient is φ = 40222872.

The previous prime is 40331359. The next prime is 40331381. The reversal of 40331371 is 17313304.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40331371 - 2⁹ = 40330859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40331381) 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, 53691 + ... + 54436.

It is an arithmetic number, because the mean of its divisors is an integer number (10109968).

Almost surely, 2^40331371 is an apocalyptic number.

40331371 is a deficient number, since it is larger than the sum of its proper divisors (108501).

40331371 is a wasteful number, since it uses less digits than its factorization.

40331371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108500.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 40331371 is about 6350.6984655233. The cubic root of 40331371 is about 342.9369874642.

Adding to 40331371 its reverse (17313304), we get a palindrome (57644675).

The spelling of 40331371 in words is "forty million, three hundred thirty-one thousand, three hundred seventy-one".