2279081 has 16 divisors (see below), whose sum is σ = 2745600. Its totient is φ = 1850688.

The previous prime is 2279063. The next prime is 2279083. The reversal of 2279081 is 1809722.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2279081 is a prime.

It is a super-2 number, since 2×2279081² = 10388420409122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2279083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20855 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (171600).

2^2279081 is an apocalyptic number.

It is an amenable number.

2279081 is a deficient number, since it is larger than the sum of its proper divisors (466519).

2279081 is a wasteful number, since it uses less digits than its factorization.

2279081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2279081 is about 1509.6625450742. The cubic root of 2279081 is about 131.5992013144.

The spelling of 2279081 in words is "two million, two hundred seventy-nine thousand, eighty-one".