2273878 has 4 divisors (see below), whose sum is σ = 3410820. Its totient is φ = 1136938.

The previous prime is 2273867. The next prime is 2273911. The reversal of 2273878 is 8783722.

It is a semiprime because it is the product of two primes.

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, 568468 + ... + 568471.

It is an arithmetic number, because the mean of its divisors is an integer number (852705).

2^2273878 is an apocalyptic number.

2273878 is a deficient number, since it is larger than the sum of its proper divisors (1136942).

2273878 is a wasteful number, since it uses less digits than its factorization.

2273878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136941.

The product of its digits is 37632, while the sum is 37.

The square root of 2273878 is about 1507.9383276514. The cubic root of 2273878 is about 131.4989807494.

The spelling of 2273878 in words is "two million, two hundred seventy-three thousand, eight hundred seventy-eight".