385625280 has 112 divisors (see below), whose sum is σ = 1296436320. Its totient is φ = 96780288.

The previous prime is 385625257. The next prime is 385625309. The reversal of 385625280 is 82526583.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4506 + ... + 28134.

Almost surely, 2^385625280 is an apocalyptic number.

385625280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385625280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648218160).

385625280 is an abundant number, since it is smaller than the sum of its proper divisors (910811040).

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

385625280 is a wasteful number, since it uses less digits than its factorization.

385625280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666 (or 23656 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 385625280 is about 19637.3440159305. The cubic root of 385625280 is about 727.8722554908.

The spelling of 385625280 in words is "three hundred eighty-five million, six hundred twenty-five thousand, two hundred eighty".