1804775648 has 48 divisors (see below), whose sum is σ = 4027882320. Its totient is φ = 789129216.

The previous prime is 1804775627. The next prime is 1804775653. The reversal of 1804775648 is 8465774081.

It is a happy number.

It is a super-2 number, since 2×1804775648² = 6514430279227639808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1804775596 and 1804775605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106265 + ... + 122072.

It is an arithmetic number, because the mean of its divisors is an integer number (83914215).

Almost surely, 2^1804775648 is an apocalyptic number.

It is an amenable number.

1804775648 is an abundant number, since it is smaller than the sum of its proper divisors (2223106672).

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

1804775648 is a wasteful number, since it uses less digits than its factorization.

1804775648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228379 (or 228371 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The square root of 1804775648 is about 42482.6511413777. The cubic root of 1804775648 is about 1217.5152437632.

The spelling of 1804775648 in words is "one billion, eight hundred four million, seven hundred seventy-five thousand, six hundred forty-eight".