403996448 has 48 divisors (see below), whose sum is σ = 825552000. Its totient is φ = 194380032.

The previous prime is 403996447. The next prime is 403996469. The reversal of 403996448 is 844699304.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (403996447) 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, 388313 + ... + 389351.

It is an arithmetic number, because the mean of its divisors is an integer number (17199000).

Almost surely, 2^403996448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403996448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412776000).

403996448 is an abundant number, since it is smaller than the sum of its proper divisors (421555552).

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

403996448 is a wasteful number, since it uses less digits than its factorization.

403996448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1489 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 403996448 is about 20099.6628827451. The cubic root of 403996448 is about 739.2520126379.

The spelling of 403996448 in words is "four hundred three million, nine hundred ninety-six thousand, four hundred forty-eight".