40023042 has 16 divisors (see below), whose sum is σ = 80134272. Its totient is φ = 13326320.

The previous prime is 40023041. The next prime is 40023089. The reversal of 40023042 is 24032004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40023041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223 + ... + 9509.

It is an arithmetic number, because the mean of its divisors is an integer number (5008392).

Almost surely, 2^40023042 is an apocalyptic number.

40023042 is an abundant number, since it is smaller than the sum of its proper divisors (40111230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40023042 is a wasteful number, since it uses less digits than its factorization.

40023042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40023042 is about 6326.3766881209. The cubic root of 40023042 is about 342.0608455061.

Adding to 40023042 its reverse (24032004), we get a palindrome (64055046).

The spelling of 40023042 in words is "forty million, twenty-three thousand, forty-two".