408448812 has 24 divisors (see below), whose sum is σ = 994484736. Its totient is φ = 130229968.

The previous prime is 408448811. The next prime is 408448813. The reversal of 408448812 is 218844804.

It is an interprime number because it is at equal distance from previous prime (408448811) and next prime (408448813).

It is a super-2 number, since 2×408448812² = 333660864048422688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408448811) 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, 739668 + ... + 740219.

It is an arithmetic number, because the mean of its divisors is an integer number (41436864).

Almost surely, 2^408448812 is an apocalyptic number.

It is an amenable number.

408448812 is an abundant number, since it is smaller than the sum of its proper divisors (586035924).

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

408448812 is a wasteful number, since it uses less digits than its factorization.

408448812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479917 (or 1479915 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 39.

The square root of 408448812 is about 20210.1165756163. The cubic root of 408448812 is about 741.9578129811.

The spelling of 408448812 in words is "four hundred eight million, four hundred forty-eight thousand, eight hundred twelve".