371161220 has 12 divisors (see below), whose sum is σ = 779438604. Its totient is φ = 148464480.

The previous prime is 371161213. The next prime is 371161237. The reversal of 371161220 is 22161173.

It can be written as a sum of positive squares in 2 ways, for example, as 57729604 + 313431616 = 7598^2 + 17704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9279011 + ... + 9279050.

It is an arithmetic number, because the mean of its divisors is an integer number (64953217).

Almost surely, 2^371161220 is an apocalyptic number.

It is an amenable number.

371161220 is an abundant number, since it is smaller than the sum of its proper divisors (408277384).

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

371161220 is a wasteful number, since it uses less digits than its factorization.

371161220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18558070 (or 18558068 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 371161220 is about 19265.5448923720. The cubic root of 371161220 is about 718.6556834526.

The spelling of 371161220 in words is "three hundred seventy-one million, one hundred sixty-one thousand, two hundred twenty".