2287057920 has 352 divisors, whose sum is σ = 8489318400. Its totient is φ = 514719744.

The previous prime is 2287057909. The next prime is 2287057921. The reversal of 2287057920 is 297507822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287057921) 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, 9569161 + ... + 9569399.

Almost surely, 2^2287057920 is an apocalyptic number.

2287057920 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 2287057920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244659200).

2287057920 is an abundant number, since it is smaller than the sum of its proper divisors (6202260480).

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

2287057920 is a wasteful number, since it uses less digits than its factorization.

2287057920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 2287057920 is about 47823.1943726054. The cubic root of 2287057920 is about 1317.5255756347.

The spelling of 2287057920 in words is "two billion, two hundred eighty-seven million, fifty-seven thousand, nine hundred twenty".