40872242 has 16 divisors (see below), whose sum is σ = 64202112. Its totient is φ = 19477920.

The previous prime is 40872239. The next prime is 40872253. The reversal of 40872242 is 24227804.

It is a super-2 number, since 2×40872242² = 3341080332213128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12878 + ... + 15734.

It is an arithmetic number, because the mean of its divisors is an integer number (4012632).

Almost surely, 2^40872242 is an apocalyptic number.

40872242 is a deficient number, since it is larger than the sum of its proper divisors (23329870).

40872242 is a wasteful number, since it uses less digits than its factorization.

40872242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 40872242 is about 6393.1402299652. The cubic root of 40872242 is about 344.4631909402.

It can be divided in two parts, 40872 and 242, that added together give a palindrome (41114).

The spelling of 40872242 in words is "forty million, eight hundred seventy-two thousand, two hundred forty-two".