2881538 has 16 divisors (see below), whose sum is σ = 4744224. Its totient is φ = 1301760.

The previous prime is 2881531. The next prime is 2881547. The reversal of 2881538 is 8351882.

It is a super-2 number, since 2×2881538² = 16606522490888, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2881498 and 2881507.

It is not an unprimeable number, because it can be changed into a prime (2881531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (296514).

2^2881538 is an apocalyptic number.

2881538 is a deficient number, since it is larger than the sum of its proper divisors (1862686).

2881538 is a wasteful number, since it uses less digits than its factorization.

2881538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 15360, while the sum is 35.

The square root of 2881538 is about 1697.5093519625. The cubic root of 2881538 is about 142.3010540703.

The spelling of 2881538 in words is "two million, eight hundred eighty-one thousand, five hundred thirty-eight".