2319451992 has 384 divisors, whose sum is σ = 7841433600. Its totient is φ = 613267200.

The previous prime is 2319451991. The next prime is 2319452017. The reversal of 2319451992 is 2991549132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2319451991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53940723 + ... + 53940765.

It is an arithmetic number, because the mean of its divisors is an integer number (20420400).

Almost surely, 2^2319451992 is an apocalyptic number.

2319451992 is a gapful number since it is divisible by the number (22) 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 2319451992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3920716800).

2319451992 is an abundant number, since it is smaller than the sum of its proper divisors (5521981608).

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

2319451992 is a wasteful number, since it uses less digits than its factorization.

2319451992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 103 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 2319451992 is about 48160.6892807817. The cubic root of 2319451992 is about 1323.7169479773.

The spelling of 2319451992 in words is "two billion, three hundred nineteen million, four hundred fifty-one thousand, nine hundred ninety-two".