2397726720 has 144 divisors (see below), whose sum is σ = 8310409380. Its totient is φ = 639369216.

The previous prime is 2397726707. The next prime is 2397726763. The reversal of 2397726720 is 276277932.

It can be written as a sum of positive squares in 2 ways, for example, as 2387690496 + 10036224 = 48864^2 + 3168^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79152 + ... + 105168.

Almost surely, 2^2397726720 is an apocalyptic number.

2397726720 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 2397726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4155204690).

2397726720 is an abundant number, since it is smaller than the sum of its proper divisors (5912682660).

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

2397726720 is a wasteful number, since it uses less digits than its factorization.

2397726720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26050 (or 26027 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 2397726720 is about 48966.5877920853. The cubic root of 2397726720 is about 1338.4430420323.

The spelling of 2397726720 in words is "two billion, three hundred ninety-seven million, seven hundred twenty-six thousand, seven hundred twenty".