40404272 has 10 divisors (see below), whose sum is σ = 78283308. Its totient is φ = 20202128.

The previous prime is 40404271. The next prime is 40404289. The reversal of 40404272 is 27240404.

It is not an unprimeable number, because it can be changed into a prime (40404271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262618 + ... + 1262649.

Almost surely, 2^40404272 is an apocalyptic number.

It is an amenable number.

40404272 is a deficient number, since it is larger than the sum of its proper divisors (37879036).

40404272 is a wasteful number, since it uses less digits than its factorization.

40404272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525275 (or 2525269 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 40404272 is about 6356.4354791030. The cubic root of 40404272 is about 343.1434884304.

Adding to 40404272 its reverse (27240404), we get a palindrome (67644676).

The spelling of 40404272 in words is "forty million, four hundred four thousand, two hundred seventy-two".