40812004 has 6 divisors (see below), whose sum is σ = 71421014. Its totient is φ = 20406000.

The previous prime is 40811987. The next prime is 40812029. The reversal of 40812004 is 40021804.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 362404 = 6360^2 + 602^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101497 + ... + 5101504.

Almost surely, 2^40812004 is an apocalyptic number.

It is an amenable number.

40812004 is a deficient number, since it is larger than the sum of its proper divisors (30609010).

40812004 is a wasteful number, since it uses less digits than its factorization.

40812004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10203005 (or 10203003 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40812004 is about 6388.4273495126. The cubic root of 40812004 is about 344.2938830776.

Adding to 40812004 its reverse (40021804), we get a palindrome (80833808).

The spelling of 40812004 in words is "forty million, eight hundred twelve thousand, four".