285140604 has 72 divisors (see below), whose sum is σ = 798970368. Its totient is φ = 78835680.

The previous prime is 285140599. The next prime is 285140633. The reversal of 285140604 is 406041582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10407 + ... + 26049.

Almost surely, 2^285140604 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 285140604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399485184).

285140604 is an abundant number, since it is smaller than the sum of its proper divisors (513829764).

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

285140604 is a wasteful number, since it uses less digits than its factorization.

285140604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695 (or 15686 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 285140604 is about 16886.1068337258. The cubic root of 285140604 is about 658.1926401404.

The spelling of 285140604 in words is "two hundred eighty-five million, one hundred forty thousand, six hundred four".