404033130 has 64 divisors (see below), whose sum is σ = 1088599680. Its totient is φ = 106624512.

The previous prime is 404033129. The next prime is 404033131. The reversal of 404033130 is 31330404.

It is an interprime number because it is at equal distance from previous prime (404033129) and next prime (404033131).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404033131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18477 + ... + 33903.

It is an arithmetic number, because the mean of its divisors is an integer number (17009370).

Almost surely, 2^404033130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404033130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544299840).

404033130 is an abundant number, since it is smaller than the sum of its proper divisors (684566550).

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

404033130 is a wasteful number, since it uses less digits than its factorization.

404033130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540 (or 15534 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 404033130 is about 20100.5753648994. The cubic root of 404033130 is about 739.2743861198.

Adding to 404033130 its reverse (31330404), we get a palindrome (435363534).

The spelling of 404033130 in words is "four hundred four million, thirty-three thousand, one hundred thirty".