385137700 has 18 divisors (see below), whose sum is σ = 835749026. Its totient is φ = 154055040.

The previous prime is 385137673. The next prime is 385137751. The reversal of 385137700 is 7731583.

It can be written as a sum of positive squares in 3 ways, for example, as 3873024 + 381264676 = 1968^2 + 19526^2 .

It is a super-2 number, since 2×385137700² = 296662095922580000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1925589 + ... + 1925788.

Almost surely, 2^385137700 is an apocalyptic number.

It is an amenable number.

385137700 is an abundant number, since it is smaller than the sum of its proper divisors (450611326).

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

385137700 is a wasteful number, since it uses less digits than its factorization.

385137700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851391 (or 3851384 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 385137700 is about 19624.9254775655. The cubic root of 385137700 is about 727.5653551108.

The spelling of 385137700 in words is "three hundred eighty-five million, one hundred thirty-seven thousand, seven hundred".