404001330 has 32 divisors (see below), whose sum is σ = 971072064. Its totient is φ = 107570496.

The previous prime is 404001319. The next prime is 404001397. The reversal of 404001330 is 33100404.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10632 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (30346002).

Almost surely, 2^404001330 is an apocalyptic number.

404001330 is an abundant number, since it is smaller than the sum of its proper divisors (567070734).

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

404001330 is a wasteful number, since it uses less digits than its factorization.

404001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 404001330 is about 20099.7843272011. The cubic root of 404001330 is about 739.2549903983.

Adding to 404001330 its reverse (33100404), we get a palindrome (437101734).

The spelling of 404001330 in words is "four hundred four million, one thousand, three hundred thirty".