2279140 has 12 divisors (see below), whose sum is σ = 4786236. Its totient is φ = 911648.

The previous prime is 2279119. The next prime is 2279141. The reversal of 2279140 is 419722.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 746496 = 1238^2 + 864^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2279141) 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, 56959 + ... + 56998.

It is an arithmetic number, because the mean of its divisors is an integer number (398853).

2^2279140 is an apocalyptic number.

2279140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279140 is an abundant number, since it is smaller than the sum of its proper divisors (2507096).

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

2279140 is a wasteful number, since it uses less digits than its factorization.

2279140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113966 (or 113964 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2279140 is about 1509.6820857386. The cubic root of 2279140 is about 131.6003369017.

The spelling of 2279140 in words is "two million, two hundred seventy-nine thousand, one hundred forty".