2345278320 has 640 divisors, whose sum is σ = 10285056000. Its totient is φ = 477066240.

The previous prime is 2345278303. The next prime is 2345278321. The reversal of 2345278320 is 238725432.

2345278320 is a `hidden beast` number, since 2 + 34 + 527 + 83 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345278321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9812761 + ... + 9812999.

It is an arithmetic number, because the mean of its divisors is an integer number (16070400).

Almost surely, 2^2345278320 is an apocalyptic number.

2345278320 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 2345278320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5142528000).

2345278320 is an abundant number, since it is smaller than the sum of its proper divisors (7939777680).

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

2345278320 is a wasteful number, since it uses less digits than its factorization.

2345278320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 2345278320 is about 48428.0736763295. The cubic root of 2345278320 is about 1328.6118744934.

The spelling of 2345278320 in words is "two billion, three hundred forty-five million, two hundred seventy-eight thousand, three hundred twenty".