2381522 has 24 divisors (see below), whose sum is σ = 4234188. Its totient is φ = 997920.

The previous prime is 2381521. The next prime is 2381527. The reversal of 2381522 is 2251832.

It can be written as a sum of positive squares in 2 ways, for example, as 2337841 + 43681 = 1529^2 + 209^2 .

It is not an unprimeable number, because it can be changed into a prime (2381521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2768 + ... + 3524.

2^2381522 is an apocalyptic number.

2381522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2381522 is a deficient number, since it is larger than the sum of its proper divisors (1852666).

2381522 is a wasteful number, since it uses less digits than its factorization.

2381522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 783 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 2381522 is about 1543.2180662499. The cubic root of 2381522 is about 133.5420993439.

The spelling of 2381522 in words is "two million, three hundred eighty-one thousand, five hundred twenty-two".