40404104 has 32 divisors (see below), whose sum is σ = 86388120. Its totient is φ = 17550336.

The previous prime is 40404101. The next prime is 40404139. The reversal of 40404104 is 40140404.

It can be written as a sum of positive squares in 4 ways, for example, as 26728900 + 13675204 = 5170^2 + 3698^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (40404101) 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, 9659 + ... + 13194.

Almost surely, 2^40404104 is an apocalyptic number.

It is an amenable number.

40404104 is an abundant number, since it is smaller than the sum of its proper divisors (45984016).

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

40404104 is a wasteful number, since it uses less digits than its factorization.

40404104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22889 (or 22885 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40404104 is about 6356.4222641357. The cubic root of 40404104 is about 343.1430128356.

Adding to 40404104 its reverse (40140404), we get a palindrome (80544508).

The spelling of 40404104 in words is "forty million, four hundred four thousand, one hundred four".