2231878 has 8 divisors (see below), whose sum is σ = 3652200. Its totient is φ = 1014480.

The previous prime is 2231861. The next prime is 2231881. The reversal of 2231878 is 8781322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2231878³ = 33352823760232344456, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50703 + ... + 50746.

It is an arithmetic number, because the mean of its divisors is an integer number (456525).

2^2231878 is an apocalyptic number.

2231878 is a deficient number, since it is larger than the sum of its proper divisors (1420322).

2231878 is a wasteful number, since it uses less digits than its factorization.

2231878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101462.

The product of its digits is 5376, while the sum is 31.

The square root of 2231878 is about 1493.9471208848. The cubic root of 2231878 is about 130.6843204085.

The spelling of 2231878 in words is "two million, two hundred thirty-one thousand, eight hundred seventy-eight".