2312022720 has 224 divisors, whose sum is σ = 8427110400. Its totient is φ = 526086144.

The previous prime is 2312022707. The next prime is 2312022751. The reversal of 2312022720 is 272202132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1807041 + ... + 1808319.

Almost surely, 2^2312022720 is an apocalyptic number.

2312022720 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 2312022720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4213555200).

2312022720 is an abundant number, since it is smaller than the sum of its proper divisors (6115087680).

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

2312022720 is a wasteful number, since it uses less digits than its factorization.

2312022720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2312022720 is about 48083.4973769588. The cubic root of 2312022720 is about 1322.3021350797.

Adding to 2312022720 its reverse (272202132), we get a palindrome (2584224852).

The spelling of 2312022720 in words is "two billion, three hundred twelve million, twenty-two thousand, seven hundred twenty".