285372830 has 32 divisors (see below), whose sum is σ = 520648128. Its totient is φ = 112608000.

The previous prime is 285372809. The next prime is 285372859. The reversal of 285372830 is 38273582.

It is a congruent number.

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, 474530 + ... + 475130.

It is an arithmetic number, because the mean of its divisors is an integer number (16270254).

Almost surely, 2^285372830 is an apocalyptic number.

285372830 is a deficient number, since it is larger than the sum of its proper divisors (235275298).

285372830 is a wasteful number, since it uses less digits than its factorization.

285372830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 285372830 is about 16892.9816787919. The cubic root of 285372830 is about 658.3712747810.

The spelling of 285372830 in words is "two hundred eighty-five million, three hundred seventy-two thousand, eight hundred thirty".