285070922 has 4 divisors (see below), whose sum is σ = 427606386. Its totient is φ = 142535460.

The previous prime is 285070897. The next prime is 285070939. The reversal of 285070922 is 229070582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 270240721 + 14830201 = 16439^2 + 3851^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71267729 + ... + 71267732.

Almost surely, 2^285070922 is an apocalyptic number.

285070922 is a deficient number, since it is larger than the sum of its proper divisors (142535464).

285070922 is a wasteful number, since it uses less digits than its factorization.

285070922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142535463.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 285070922 is about 16884.0434138272. The cubic root of 285070922 is about 658.1390199083.

The spelling of 285070922 in words is "two hundred eighty-five million, seventy thousand, nine hundred twenty-two".