385892840 has 32 divisors (see below), whose sum is σ = 872640000. Its totient is φ = 153578304.

The previous prime is 385892839. The next prime is 385892849. The reversal of 385892840 is 48298583.

385892840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (385892849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16280 + ... + 32199.

It is an arithmetic number, because the mean of its divisors is an integer number (27270000).

Almost surely, 2^385892840 is an apocalyptic number.

It is an amenable number.

385892840 is an abundant number, since it is smaller than the sum of its proper divisors (486747160).

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

385892840 is a wasteful number, since it uses less digits than its factorization.

385892840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48689 (or 48685 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 385892840 is about 19644.1553648916. The cubic root of 385892840 is about 728.0405574555.

The spelling of 385892840 in words is "three hundred eighty-five million, eight hundred ninety-two thousand, eight hundred forty".