365822220 has 48 divisors (see below), whose sum is σ = 1027847520. Its totient is φ = 97214976.

The previous prime is 365822189. The next prime is 365822221. The reversal of 365822220 is 22228563.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (365822221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7176 + ... + 27984.

It is an arithmetic number, because the mean of its divisors is an integer number (21413490).

Almost surely, 2^365822220 is an apocalyptic number.

365822220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

365822220 is an abundant number, since it is smaller than the sum of its proper divisors (662025300).

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

365822220 is a wasteful number, since it uses less digits than its factorization.

365822220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21114 (or 21112 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 365822220 is about 19126.4795506125. The cubic root of 365822220 is about 715.1931732278.

It can be divided in two parts, 3658 and 22220, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 365822220 in words is "three hundred sixty-five million, eight hundred twenty-two thousand, two hundred twenty".