361940580 has 72 divisors (see below), whose sum is σ = 1100736000. Its totient is φ = 96267072.

The previous prime is 361940567. The next prime is 361940597. The reversal of 361940580 is 85049163.

361940580 is a `hidden beast` number, since 36 + 1 + 9 + 40 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73021 + ... + 77819.

It is an arithmetic number, because the mean of its divisors is an integer number (15288000).

Almost surely, 2^361940580 is an apocalyptic number.

361940580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 361940580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368000).

361940580 is an abundant number, since it is smaller than the sum of its proper divisors (738795420).

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

361940580 is a wasteful number, since it uses less digits than its factorization.

361940580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 361940580 is about 19024.7360034246. The cubic root of 361940580 is about 712.6545998778.

The spelling of 361940580 in words is "three hundred sixty-one million, nine hundred forty thousand, five hundred eighty".