2193742320 has 160 divisors (see below), whose sum is σ = 8478743040. Its totient is φ = 455838720.

The previous prime is 2193742319. The next prime is 2193742333. The reversal of 2193742320 is 232473912.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 40875 + ... + 77834.

It is an arithmetic number, because the mean of its divisors is an integer number (52992144).

Almost surely, 2^2193742320 is an apocalyptic number.

2193742320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2193742320 is an abundant number, since it is smaller than the sum of its proper divisors (6285000720).

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

2193742320 is a wasteful number, since it uses less digits than its factorization.

2193742320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118743 (or 118737 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 2193742320 is about 46837.4030023015. The cubic root of 2193742320 is about 1299.3571417210.

The spelling of 2193742320 in words is "two billion, one hundred ninety-three million, seven hundred forty-two thousand, three hundred twenty".