2381522220 has 144 divisors (see below), whose sum is σ = 9006536448. Its totient is φ = 494858880.

The previous prime is 2381522201. The next prime is 2381522239. The reversal of 2381522220 is 222251832.

2381522220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2381522201) and next prime (2381522239).

It is a super-3 number, since 3×2381522220³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72054 + ... + 99773.

It is an arithmetic number, because the mean of its divisors is an integer number (62545392).

Almost surely, 2^2381522220 is an apocalyptic number.

2381522220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2381522220 is an abundant number, since it is smaller than the sum of its proper divisors (6625014228).

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

2381522220 is a wasteful number, since it uses less digits than its factorization.

2381522220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171860 (or 171855 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2381522220 is about 48800.8424107617. The cubic root of 2381522220 is about 1335.4210345605.

The spelling of 2381522220 in words is "two billion, three hundred eighty-one million, five hundred twenty-two thousand, two hundred twenty".