404204130 has 72 divisors (see below), whose sum is σ = 1155186396. Its totient is φ = 97986240.

The previous prime is 404204123. The next prime is 404204137. The reversal of 404204130 is 31402404.

It is an interprime number because it is at equal distance from previous prime (404204123) and next prime (404204137).

It can be written as a sum of positive squares in 2 ways, for example, as 403889409 + 314721 = 20097^2 + 561^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (404204137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7669 + ... + 29448.

Almost surely, 2^404204130 is an apocalyptic number.

404204130 is an abundant number, since it is smaller than the sum of its proper divisors (750982266).

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

404204130 is a wasteful number, since it uses less digits than its factorization.

404204130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37152 (or 37138 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 404204130 is about 20104.8285245112. The cubic root of 404204130 is about 739.3786664213.

Adding to 404204130 its reverse (31402404), we get a palindrome (435606534).

The spelling of 404204130 in words is "four hundred four million, two hundred four thousand, one hundred thirty".