385880 has 32 divisors (see below), whose sum is σ = 948240. Its totient is φ = 140160.

The previous prime is 385877. The next prime is 385897. The reversal of 385880 is 88583.

385880 = 26² + 27² + ... + 105².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 878.

2³⁸⁵⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474120).

385880 is an abundant number, since it is smaller than the sum of its proper divisors (562360).

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

385880 is a wasteful number, since it uses less digits than its factorization.

385880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 385880 is about 621.1924017565. The cubic root of 385880 is about 72.8032482550.

The spelling of 385880 in words is "three hundred eighty-five thousand, eight hundred eighty".