408148868 has 6 divisors (see below), whose sum is σ = 714260526. Its totient is φ = 204074432.

The previous prime is 408148859. The next prime is 408148877. The reversal of 408148868 is 868841804.

It is an interprime number because it is at equal distance from previous prime (408148859) and next prime (408148877).

It can be written as a sum of positive squares in only one way, i.e., 400320064 + 7828804 = 20008^2 + 2798^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51018605 + ... + 51018612.

It is an arithmetic number, because the mean of its divisors is an integer number (119043421).

Almost surely, 2^408148868 is an apocalyptic number.

It is an amenable number.

408148868 is a deficient number, since it is larger than the sum of its proper divisors (306111658).

408148868 is a wasteful number, since it uses less digits than its factorization.

408148868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102037221 (or 102037219 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 47.

The square root of 408148868 is about 20202.6945727544. The cubic root of 408148868 is about 741.7761498323.

The spelling of 408148868 in words is "four hundred eight million, one hundred forty-eight thousand, eight hundred sixty-eight".