2321319690 has 48 divisors (see below), whose sum is σ = 6198559848. Its totient is φ = 602287488.

The previous prime is 2321319683. The next prime is 2321319691. The reversal of 2321319690 is 969131232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2215867329 + 105452361 = 47073^2 + 10269^2 .

It is a super-2 number, since 2×2321319690² = 10777050206363392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2321319691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345217 + ... + 351876.

Almost surely, 2^2321319690 is an apocalyptic number.

2321319690 is an abundant number, since it is smaller than the sum of its proper divisors (3877240158).

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

2321319690 is a wasteful number, since it uses less digits than its factorization.

2321319690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697143 (or 697140 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2321319690 is about 48180.0756537389. The cubic root of 2321319690 is about 1324.0721525987.

The spelling of 2321319690 in words is "two billion, three hundred twenty-one million, three hundred nineteen thousand, six hundred ninety".