385801900 has 36 divisors (see below), whose sum is σ = 913300920. Its totient is φ = 140291200.

The previous prime is 385801837. The next prime is 385801919. The reversal of 385801900 is 9108583.

385801900 = T₂₂₅ + T₂₂₆ + ... + T₁₃₂₄.

It is a super-2 number, since 2×385801900² = 297686212087220000, which contains 22 as substring.

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, 174265 + ... + 176464.

It is an arithmetic number, because the mean of its divisors is an integer number (25369470).

Almost surely, 2^385801900 is an apocalyptic number.

It is an amenable number.

385801900 is an abundant number, since it is smaller than the sum of its proper divisors (527499020).

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

385801900 is a wasteful number, since it uses less digits than its factorization.

385801900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350754 (or 350747 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 385801900 is about 19641.8405451220. The cubic root of 385801900 is about 727.9833626395.

The spelling of 385801900 in words is "three hundred eighty-five million, eight hundred one thousand, nine hundred".