2321859420 has 72 divisors (see below), whose sum is σ = 7066083024. Its totient is φ = 617131008.

The previous prime is 2321859367. The next prime is 2321859431. The reversal of 2321859420 is 249581232.

It is a happy number.

2321859420 is a `hidden beast` number, since 2 + 32 + 18 + 594 + 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34252 + ... + 76268.

It is an arithmetic number, because the mean of its divisors is an integer number (98140042).

Almost surely, 2^2321859420 is an apocalyptic number.

2321859420 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 2321859420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533041512).

2321859420 is an abundant number, since it is smaller than the sum of its proper divisors (4744223604).

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

2321859420 is a wasteful number, since it uses less digits than its factorization.

2321859420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42339 (or 42334 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2321859420 is about 48185.6765024628. The cubic root of 2321859420 is about 1324.1747646439.

The spelling of 2321859420 in words is "two billion, three hundred twenty-one million, eight hundred fifty-nine thousand, four hundred twenty".