285370122 has 16 divisors (see below), whose sum is σ = 586166112. Its totient is φ = 92552400.

The previous prime is 285370093. The next prime is 285370133. The reversal of 285370122 is 221073582.

It is a super-2 number, since 2×285370122² = 162872213060589768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285370122.

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, 642504 + ... + 642947.

It is an arithmetic number, because the mean of its divisors is an integer number (36635382).

Almost surely, 2^285370122 is an apocalyptic number.

285370122 is an abundant number, since it is smaller than the sum of its proper divisors (300795990).

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

285370122 is a wasteful number, since it uses less digits than its factorization.

285370122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285493.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 285370122 is about 16892.9015269728. The cubic root of 285370122 is about 658.3691922713.

The spelling of 285370122 in words is "two hundred eighty-five million, three hundred seventy thousand, one hundred twenty-two".