2297547920 has 80 divisors (see below), whose sum is σ = 5511188928. Its totient is φ = 890334720.

The previous prime is 2297547883. The next prime is 2297547949. The reversal of 2297547920 is 297457922.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323447 + ... + 330473.

Almost surely, 2^2297547920 is an apocalyptic number.

2297547920 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 2297547920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755594464).

2297547920 is an abundant number, since it is smaller than the sum of its proper divisors (3213641008).

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

2297547920 is a wasteful number, since it uses less digits than its factorization.

2297547920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168 (or 7162 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 2297547920 is about 47932.7437145006. The cubic root of 2297547920 is about 1319.5368592520.

The spelling of 2297547920 in words is "two billion, two hundred ninety-seven million, five hundred forty-seven thousand, nine hundred twenty".