2232145720 has 64 divisors (see below), whose sum is σ = 5747785920. Its totient is φ = 764242944.

The previous prime is 2232145693. The next prime is 2232145723. The reversal of 2232145720 is 275412322.

It is a super-3 number, since 3×2232145720³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232145723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211284 + ... + 221596.

It is an arithmetic number, because the mean of its divisors is an integer number (89809155).

Almost surely, 2^2232145720 is an apocalyptic number.

2232145720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2232145720 is an abundant number, since it is smaller than the sum of its proper divisors (3515640200).

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

2232145720 is a wasteful number, since it uses less digits than its factorization.

2232145720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104 (or 11100 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2232145720 is about 47245.5894237758. The cubic root of 2232145720 is about 1306.8954551602.

The spelling of 2232145720 in words is "two billion, two hundred thirty-two million, one hundred forty-five thousand, seven hundred twenty".