408704448 has 28 divisors (see below), whose sum is σ = 1081364360. Its totient is φ = 136234752.

The previous prime is 408704447. The next prime is 408704507. The reversal of 408704448 is 844407804.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408704447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064143 + ... + 1064526.

Almost surely, 2^408704448 is an apocalyptic number.

408704448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

408704448 is an abundant number, since it is smaller than the sum of its proper divisors (672659912).

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

408704448 is a wasteful number, since it uses less digits than its factorization.

408704448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128684 (or 2128674 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 39.

The square root of 408704448 is about 20216.4400426979. The cubic root of 408704448 is about 742.1125704977.

The spelling of 408704448 in words is "four hundred eight million, seven hundred four thousand, four hundred forty-eight".