408399275968 has 28 divisors (see below), whose sum is σ = 810486598480. Its totient is φ = 204182180352.

The previous prime is 408399275939. The next prime is 408399275989. The reversal of 408399275968 is 869572993804.

It is a super-2 number, since 2×408399275968² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 408399275897 and 408399275906.

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, 498580 + ... + 1032172.

Almost surely, 2^408399275968 is an apocalyptic number.

It is an amenable number.

408399275968 is a deficient number, since it is larger than the sum of its proper divisors (402087322512).

408399275968 is a wasteful number, since it uses less digits than its factorization.

408399275968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545564 (or 545554 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 70.

The spelling of 408399275968 in words is "four hundred eight billion, three hundred ninety-nine million, two hundred seventy-five thousand, nine hundred sixty-eight".