2346578920 has 128 divisors (see below), whose sum is σ = 6124688640. Its totient is φ = 792576000.

The previous prime is 2346578911. The next prime is 2346578921. The reversal of 2346578920 is 298756432.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2346578921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9348795 + ... + 9349045.

It is an arithmetic number, because the mean of its divisors is an integer number (47849130).

Almost surely, 2^2346578920 is an apocalyptic number.

2346578920 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 2346578920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3062344320).

2346578920 is an abundant number, since it is smaller than the sum of its proper divisors (3778109720).

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

2346578920 is a wasteful number, since it uses less digits than its factorization.

2346578920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 2346578920 is about 48441.4999767761. The cubic root of 2346578920 is about 1328.8574279048.

The spelling of 2346578920 in words is "two billion, three hundred forty-six million, five hundred seventy-eight thousand, nine hundred twenty".