404823028 has 6 divisors (see below), whose sum is σ = 708440306. Its totient is φ = 202411512.

The previous prime is 404823019. The next prime is 404823037. The reversal of 404823028 is 820328404.

It is an interprime number because it is at equal distance from previous prime (404823019) and next prime (404823037).

It can be written as a sum of positive squares in only one way, i.e., 399120484 + 5702544 = 19978^2 + 2388^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50602875 + ... + 50602882.

Almost surely, 2^404823028 is an apocalyptic number.

It is an amenable number.

404823028 is a deficient number, since it is larger than the sum of its proper divisors (303617278).

404823028 is a wasteful number, since it uses less digits than its factorization.

404823028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101205761 (or 101205759 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 404823028 is about 20120.2144123764. The cubic root of 404823028 is about 739.7558410472.

The spelling of 404823028 in words is "four hundred four million, eight hundred twenty-three thousand, twenty-eight".