366399858 has 24 divisors (see below), whose sum is σ = 805475664. Its totient is φ = 111030040.

The previous prime is 366399809. The next prime is 366399899. The reversal of 366399858 is 858993663.

It is a junction number, because it is equal to n+sod(n) for n = 366399798 and 366399807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251616 + ... + 253067.

It is an arithmetic number, because the mean of its divisors is an integer number (33561486).

Almost surely, 2^366399858 is an apocalyptic number.

366399858 is an abundant number, since it is smaller than the sum of its proper divisors (439075806).

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

366399858 is a wasteful number, since it uses less digits than its factorization.

366399858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504710 (or 504699 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 57.

The square root of 366399858 is about 19141.5740732052. The cubic root of 366399858 is about 715.5694083498.

The spelling of 366399858 in words is "three hundred sixty-six million, three hundred ninety-nine thousand, eight hundred fifty-eight".