2319099840 has 168 divisors, whose sum is σ = 8252094240. Its totient is φ = 597080064.

The previous prime is 2319099799. The next prime is 2319099889. The reversal of 2319099840 is 489909132.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69637 + ... + 97403.

Almost surely, 2^2319099840 is an apocalyptic number.

2319099840 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 2319099840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4126047120).

2319099840 is an abundant number, since it is smaller than the sum of its proper divisors (5932994400).

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

2319099840 is a wasteful number, since it uses less digits than its factorization.

2319099840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27819 (or 27806 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 2319099840 is about 48157.0331312052. The cubic root of 2319099840 is about 1323.6499532496.

The spelling of 2319099840 in words is "two billion, three hundred nineteen million, ninety-nine thousand, eight hundred forty".