404893828 has 12 divisors (see below), whose sum is σ = 750244572. Its totient is φ = 190538240.

The previous prime is 404893823. The next prime is 404893829. The reversal of 404893828 is 828398404.

It can be written as a sum of positive squares in 2 ways, for example, as 184905604 + 219988224 = 13598^2 + 14832^2 .

It is not an unprimeable number, because it can be changed into a prime (404893823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2977093 + ... + 2977228.

It is an arithmetic number, because the mean of its divisors is an integer number (62520381).

Almost surely, 2^404893828 is an apocalyptic number.

It is an amenable number.

404893828 is a deficient number, since it is larger than the sum of its proper divisors (345350744).

404893828 is a wasteful number, since it uses less digits than its factorization.

404893828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954342 (or 5954340 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 404893828 is about 20121.9737600465. The cubic root of 404893828 is about 739.7989641380.

The spelling of 404893828 in words is "four hundred four million, eight hundred ninety-three thousand, eight hundred twenty-eight".