2881006 has 8 divisors (see below), whose sum is σ = 4413600. Its totient is φ = 1409808.

The previous prime is 2880991. The next prime is 2881009. The reversal of 2881006 is 6001882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15231 + ... + 15418.

It is an arithmetic number, because the mean of its divisors is an integer number (551700).

2^2881006 is an apocalyptic number.

2881006 is the 1074-th centered pentagonal number.

2881006 is a deficient number, since it is larger than the sum of its proper divisors (1532594).

2881006 is a wasteful number, since it uses less digits than its factorization.

2881006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30698.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2881006 is about 1697.3526445615. The cubic root of 2881006 is about 142.2922961523.

Adding to 2881006 its reverse (6001882), we get a palindrome (8882888).

The spelling of 2881006 in words is "two million, eight hundred eighty-one thousand, six".