365221912 has 64 divisors (see below), whose sum is σ = 780917760. Its totient is φ = 158620800.

The previous prime is 365221907. The next prime is 365221921. The reversal of 365221912 is 219122563.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225618 + ... + 227230.

It is an arithmetic number, because the mean of its divisors is an integer number (12201840).

Almost surely, 2^365221912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365221912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390458880).

365221912 is an abundant number, since it is smaller than the sum of its proper divisors (415695848).

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

365221912 is a wasteful number, since it uses less digits than its factorization.

365221912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 1740 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 365221912 is about 19110.7799945476. The cubic root of 365221912 is about 714.8017524605.

The spelling of 365221912 in words is "three hundred sixty-five million, two hundred twenty-one thousand, nine hundred twelve".