2292870840 has 128 divisors (see below), whose sum is σ = 7424040960. Its totient is φ = 563157504.

The previous prime is 2292870821. The next prime is 2292870857. The reversal of 2292870840 is 480782922.

It is a junction number, because it is equal to n+sod(n) for n = 2292870792 and 2292870801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 851977 + ... + 854663.

It is an arithmetic number, because the mean of its divisors is an integer number (58000320).

Almost surely, 2^2292870840 is an apocalyptic number.

2292870840 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 2292870840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3712020480).

2292870840 is an abundant number, since it is smaller than the sum of its proper divisors (5131170120).

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

2292870840 is a wasteful number, since it uses less digits than its factorization.

2292870840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2292870840 is about 47883.9309163314. The cubic root of 2292870840 is about 1318.6408645937.

The spelling of 2292870840 in words is "two billion, two hundred ninety-two million, eight hundred seventy thousand, eight hundred forty".