404960028 has 24 divisors (see below), whose sum is σ = 1030807680. Its totient is φ = 122715120.

The previous prime is 404960027. The next prime is 404960041. The reversal of 404960028 is 820069404.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404960027) 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, 1533808 + ... + 1534071.

It is an arithmetic number, because the mean of its divisors is an integer number (42950320).

Almost surely, 2^404960028 is an apocalyptic number.

It is an amenable number.

404960028 is an abundant number, since it is smaller than the sum of its proper divisors (625847652).

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

404960028 is a wasteful number, since it uses less digits than its factorization.

404960028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067897 (or 3067895 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 404960028 is about 20123.6186606684. The cubic root of 404960028 is about 739.8392808986.

The spelling of 404960028 in words is "four hundred four million, nine hundred sixty thousand, twenty-eight".