361161870 has 64 divisors (see below), whose sum is σ = 906992640. Its totient is φ = 91866368.

The previous prime is 361161869. The next prime is 361161887. The reversal of 361161870 is 78161163.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446026 + ... + 446834.

It is an arithmetic number, because the mean of its divisors is an integer number (14171760).

Almost surely, 2^361161870 is an apocalyptic number.

361161870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 361161870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453496320).

361161870 is an abundant number, since it is smaller than the sum of its proper divisors (545830770).

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

361161870 is a wasteful number, since it uses less digits than its factorization.

361161870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 361161870 is about 19004.2592594397. The cubic root of 361161870 is about 712.1431441671.

The spelling of 361161870 in words is "three hundred sixty-one million, one hundred sixty-one thousand, eight hundred seventy".