404778048 has 56 divisors (see below), whose sum is σ = 1075578240. Its totient is φ = 134346240.

The previous prime is 404778047. The next prime is 404778097. The reversal of 404778048 is 840877404.

It is not an unprimeable number, because it can be changed into a prime (404778047) 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, 41478 + ... + 50298.

Almost surely, 2^404778048 is an apocalyptic number.

404778048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404778048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537789120).

404778048 is an abundant number, since it is smaller than the sum of its proper divisors (670800192).

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

404778048 is a wasteful number, since it uses less digits than its factorization.

404778048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9065 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 404778048 is about 20119.0965999967. The cubic root of 404778048 is about 739.7284418729.

The spelling of 404778048 in words is "four hundred four million, seven hundred seventy-eight thousand, forty-eight".