40431364 has 6 divisors (see below), whose sum is σ = 70754894. Its totient is φ = 20215680.

The previous prime is 40431359. The next prime is 40431367. The reversal of 40431364 is 46313404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 10291264 = 5490^2 + 3208^2 .

It is not an unprimeable number, because it can be changed into a prime (40431367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053917 + ... + 5053924.

Almost surely, 2^40431364 is an apocalyptic number.

It is an amenable number.

40431364 is a deficient number, since it is larger than the sum of its proper divisors (30323530).

40431364 is a wasteful number, since it uses less digits than its factorization.

40431364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107845 (or 10107843 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 40431364 is about 6358.5661905810. The cubic root of 40431364 is about 343.2201665131.

Adding to 40431364 its reverse (46313404), we get a palindrome (86744768).

The spelling of 40431364 in words is "forty million, four hundred thirty-one thousand, three hundred sixty-four".