408386998 has 8 divisors (see below), whose sum is σ = 617257080. Its totient is φ = 202634640.

The previous prime is 408386983. The next prime is 408387013. The reversal of 408386998 is 899683804.

It is an interprime number because it is at equal distance from previous prime (408386983) and next prime (408387013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779103 + ... + 779626.

It is an arithmetic number, because the mean of its divisors is an integer number (77157135).

Almost surely, 2^408386998 is an apocalyptic number.

408386998 is a deficient number, since it is larger than the sum of its proper divisors (208870082).

408386998 is a wasteful number, since it uses less digits than its factorization.

408386998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558862.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 408386998 is about 20208.5872341438. The cubic root of 408386998 is about 741.9203821838.

The spelling of 408386998 in words is "four hundred eight million, three hundred eighty-six thousand, nine hundred ninety-eight".