400884048 has 120 divisors (see below), whose sum is σ = 1170479648. Its totient is φ = 127961856.

The previous prime is 400884047. The next prime is 400884149. The reversal of 400884048 is 840488004.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400884041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356415 + ... + 357537.

Almost surely, 2^400884048 is an apocalyptic number.

400884048 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 400884048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585239824).

400884048 is an abundant number, since it is smaller than the sum of its proper divisors (769595600).

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

400884048 is a wasteful number, since it uses less digits than its factorization.

400884048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 400884048 is about 20022.0890018999. The cubic root of 400884048 is about 737.3487104396.

The spelling of 400884048 in words is "four hundred million, eight hundred eighty-four thousand, forty-eight".