2194087280 has 160 divisors (see below), whose sum is σ = 6468871680. Its totient is φ = 672168960.

The previous prime is 2194087271. The next prime is 2194087289. The reversal of 2194087280 is 827804912.

It is an interprime number because it is at equal distance from previous prime (2194087271) and next prime (2194087289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194087289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360422 + ... + 366458.

It is an arithmetic number, because the mean of its divisors is an integer number (40430448).

Almost surely, 2^2194087280 is an apocalyptic number.

2194087280 is a gapful number since it is divisible by the number (20) 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 2194087280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3234435840).

2194087280 is an abundant number, since it is smaller than the sum of its proper divisors (4274784400).

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

2194087280 is a wasteful number, since it uses less digits than its factorization.

2194087280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 2194087280 is about 46841.0853845211. The cubic root of 2194087280 is about 1299.4252449410.

The spelling of 2194087280 in words is "two billion, one hundred ninety-four million, eighty-seven thousand, two hundred eighty".