408146944 has 22 divisors (see below), whose sum is σ = 815897354. Its totient is φ = 204072960.

The previous prime is 408146933. The next prime is 408146987. The reversal of 408146944 is 449641804.

It can be written as a sum of positive squares in only one way, i.e., 406425600 + 1721344 = 20160^2 + 1312^2 .

It is a junction number, because it is equal to n+sod(n) for n = 408146897 and 408146906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198267 + ... + 200314.

Almost surely, 2^408146944 is an apocalyptic number.

It is an amenable number.

408146944 is a deficient number, since it is larger than the sum of its proper divisors (407750410).

408146944 is an equidigital number, since it uses as much as digits as its factorization.

408146944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398601 (or 398583 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 408146944 is about 20202.6469552878. The cubic root of 408146944 is about 741.7749842612.

The spelling of 408146944 in words is "four hundred eight million, one hundred forty-six thousand, nine hundred forty-four".