2281332520 has 16 divisors (see below), whose sum is σ = 5132998260. Its totient is φ = 912532992.

The previous prime is 2281332511. The next prime is 2281332601. The reversal of 2281332520 is 252331822.

It can be written as a sum of positive squares in 2 ways, for example, as 2095991524 + 185340996 = 45782^2 + 13614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28516617 + ... + 28516696.

Almost surely, 2^2281332520 is an apocalyptic number.

2281332520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281332520 is an abundant number, since it is smaller than the sum of its proper divisors (2851665740).

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

2281332520 is a wasteful number, since it uses less digits than its factorization.

2281332520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57033324 (or 57033320 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2281332520 is about 47763.2967873869. The cubic root of 2281332520 is about 1316.4252297428.

The spelling of 2281332520 in words is "two billion, two hundred eighty-one million, three hundred thirty-two thousand, five hundred twenty".