2390134321 has 3 divisors (see below), whose sum is σ = 2390183211. Its totient is φ = 2390085432.

The previous prime is 2390134277. The next prime is 2390134333. The reversal of 2390134321 is 1234310932.

The square root of 2390134321 is 48889.

It is a perfect power (a square), and thus also a powerful number.

2390134321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1416694321 + 973440000 = 37639^2 + 31200^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2390134321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2390134321.

It is not an unprimeable number, because it can be changed into a prime (2390134421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24445 + ... + 73333.

It is an arithmetic number, because the mean of its divisors is an integer number (796727737).

Almost surely, 2^2390134321 is an apocalyptic number.

2390134321 is the 48889-th square number.

2390134321 is the 24445-th centered octagonal number.

It is an amenable number.

2390134321 is a deficient number, since it is larger than the sum of its proper divisors (48890).

2390134321 is an frugal number, since it uses more digits than its factorization.

2390134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97778 (or 48889 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The cubic root of 2390134321 is about 1337.0288221355.

The spelling of 2390134321 in words is "two billion, three hundred ninety million, one hundred thirty-four thousand, three hundred twenty-one".