2268478 has 4 divisors (see below), whose sum is σ = 3402720. Its totient is φ = 1134238.

The previous prime is 2268451. The next prime is 2268481. The reversal of 2268478 is 8748622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8748622 = 2 ⋅4374311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567118 + ... + 567121.

It is an arithmetic number, because the mean of its divisors is an integer number (850680).

2^2268478 is an apocalyptic number.

2268478 is a deficient number, since it is larger than the sum of its proper divisors (1134242).

2268478 is a wasteful number, since it uses less digits than its factorization.

2268478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134241.

The product of its digits is 43008, while the sum is 37.

The square root of 2268478 is about 1506.1467391991. The cubic root of 2268478 is about 131.3948037517.

The spelling of 2268478 in words is "two million, two hundred sixty-eight thousand, four hundred seventy-eight".