2319400849 has 2 divisors, whose sum is σ = 2319400850. Its totient is φ = 2319400848.

The previous prime is 2319400781. The next prime is 2319400859. The reversal of 2319400849 is 9480049132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1752008449 + 567392400 = 41857^2 + 23820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2319400849 - 2⁹ = 2319400337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2319400859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1159700424 + 1159700425.

It is an arithmetic number, because the mean of its divisors is an integer number (1159700425).

Almost surely, 2^2319400849 is an apocalyptic number.

It is an amenable number.

2319400849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2319400849 is an equidigital number, since it uses as much as digits as its factorization.

2319400849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2319400849 is about 48160.1583157697. The cubic root of 2319400849 is about 1323.7072187605.

The spelling of 2319400849 in words is "two billion, three hundred nineteen million, four hundred thousand, eight hundred forty-nine".