40104442 has 24 divisors (see below), whose sum is σ = 71475264. Its totient is φ = 16819992.

The previous prime is 40104431. The next prime is 40104443. The reversal of 40104442 is 24440104.

It is not an unprimeable number, because it can be changed into a prime (40104443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (2978136).

Almost surely, 2^40104442 is an apocalyptic number.

40104442 is a deficient number, since it is larger than the sum of its proper divisors (31370822).

40104442 is a wasteful number, since it uses less digits than its factorization.

40104442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770 (or 8763 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 40104442 is about 6332.8068026745. The cubic root of 40104442 is about 342.2925861590.

Adding to 40104442 its reverse (24440104), we get a palindrome (64544546).

The spelling of 40104442 in words is "forty million, one hundred four thousand, four hundred forty-two".