40424042 has 32 divisors (see below), whose sum is σ = 64703232. Its totient is φ = 18918144.

The previous prime is 40424009. The next prime is 40424051. The reversal of 40424042 is 24042404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294998 + ... + 295134.

It is an arithmetic number, because the mean of its divisors is an integer number (2021976).

Almost surely, 2^40424042 is an apocalyptic number.

40424042 is a deficient number, since it is larger than the sum of its proper divisors (24279190).

40424042 is a wasteful number, since it uses less digits than its factorization.

40424042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40424042 is about 6357.9904057807. The cubic root of 40424042 is about 343.1994465445.

Adding to 40424042 its reverse (24042404), we get a palindrome (64466446).

It can be divided in two parts, 4042404 and 2, that multiplied together give a palindrome (8084808).

The spelling of 40424042 in words is "forty million, four hundred twenty-four thousand, forty-two".