362221820 has 48 divisors (see below), whose sum is σ = 770242368. Its totient is φ = 143078400.

The previous prime is 362221813. The next prime is 362221829. The reversal of 362221820 is 28122263.

It is a super-2 number, since 2×362221820² = 262409293768224800, 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 362221820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (362221829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836324 + ... + 836756.

It is an arithmetic number, because the mean of its divisors is an integer number (16046716).

Almost surely, 2^362221820 is an apocalyptic number.

It is an amenable number.

362221820 is an abundant number, since it is smaller than the sum of its proper divisors (408020548).

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

362221820 is a wasteful number, since it uses less digits than its factorization.

362221820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 362221820 is about 19032.1259979015. The cubic root of 362221820 is about 712.8391376172.

The spelling of 362221820 in words is "three hundred sixty-two million, two hundred twenty-one thousand, eight hundred twenty".