400448404480 has 44 divisors (see below), whose sum is σ = 960606907560. Its totient is φ = 160179359744.

The previous prime is 400448404441. The next prime is 400448404501. The reversal of 400448404480 is 84404844004.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39101170 + ... + 39111409.

Almost surely, 2^400448404480 is an apocalyptic number.

400448404480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400448404480 is an abundant number, since it is smaller than the sum of its proper divisors (560158503080).

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

400448404480 is an equidigital number, since it uses as much as digits as its factorization.

400448404480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78212604 (or 78212586 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 400448404480 in words is "four hundred billion, four hundred forty-eight million, four hundred four thousand, four hundred eighty".