2279864 has 32 divisors (see below), whose sum is σ = 4579200. Its totient is φ = 1061760.

The previous prime is 2279857. The next prime is 2279869. The reversal of 2279864 is 4689722.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 7⁴ + 9² + 8⁵ + 6 + 4⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279869) 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, 7034 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (143100).

2^2279864 is an apocalyptic number.

It is an amenable number.

2279864 is an abundant number, since it is smaller than the sum of its proper divisors (2299336).

2279864 is a wasteful number, since it uses less digits than its factorization.

2279864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 379 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 2279864 is about 1509.9218522824. The cubic root of 2279864 is about 131.6142703088.

The spelling of 2279864 in words is "two million, two hundred seventy-nine thousand, eight hundred sixty-four".