285162022 has 4 divisors (see below), whose sum is σ = 427743036. Its totient is φ = 142581010.

The previous prime is 285162001. The next prime is 285162023. The reversal of 285162022 is 220261582.

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

It is a super-2 number, since 2×285162022² = 162634757582256968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285162023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71290504 + ... + 71290507.

It is an arithmetic number, because the mean of its divisors is an integer number (106935759).

Almost surely, 2^285162022 is an apocalyptic number.

285162022 is a deficient number, since it is larger than the sum of its proper divisors (142581014).

285162022 is a wasteful number, since it uses less digits than its factorization.

285162022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142581013.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 285162022 is about 16886.7410118116. The cubic root of 285162022 is about 658.2091195156.

The spelling of 285162022 in words is "two hundred eighty-five million, one hundred sixty-two thousand, twenty-two".