40023244 has 12 divisors (see below), whose sum is σ = 70661304. Its totient is φ = 19834304.

The previous prime is 40023229. The next prime is 40023311. The reversal of 40023244 is 44232004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43822 + ... + 44725.

It is an arithmetic number, because the mean of its divisors is an integer number (5888442).

Almost surely, 2^40023244 is an apocalyptic number.

It is an amenable number.

40023244 is a deficient number, since it is larger than the sum of its proper divisors (30638060).

40023244 is a wasteful number, since it uses less digits than its factorization.

40023244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88664 (or 88662 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40023244 is about 6326.3926530053. The cubic root of 40023244 is about 342.0614209761.

Adding to 40023244 its reverse (44232004), we get a palindrome (84255248).

The spelling of 40023244 in words is "forty million, twenty-three thousand, two hundred forty-four".