2291548000 has 192 divisors, whose sum is σ = 6481133568. Its totient is φ = 780019200.

The previous prime is 2291547977. The next prime is 2291548001. The reversal of 2291548000 is 8451922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291548001) 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, 6243817 + ... + 6244183.

It is an arithmetic number, because the mean of its divisors is an integer number (33755904).

Almost surely, 2^2291548000 is an apocalyptic number.

2291548000 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 2291548000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3240566784).

2291548000 is an abundant number, since it is smaller than the sum of its proper divisors (4189585568).

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

2291548000 is a wasteful number, since it uses less digits than its factorization.

2291548000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2291548000 is about 47870.1159388611. The cubic root of 2291548000 is about 1318.3872252961.

Adding to 2291548000 its reverse (8451922), we get a palindrome (2299999922).

The spelling of 2291548000 in words is "two billion, two hundred ninety-one million, five hundred forty-eight thousand".