1878226 has 32 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 727056.

The previous prime is 1878223. The next prime is 1878229. The reversal of 1878226 is 6228781.

It is an interprime number because it is at equal distance from previous prime (1878223) and next prime (1878229).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1878191 and 1878200.

It is not an unprimeable number, because it can be changed into a prime (1878221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5965 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^1878226 is an apocalyptic number.

1878226 is a deficient number, since it is larger than the sum of its proper divisors (1669934).

1878226 is a wasteful number, since it uses less digits than its factorization.

1878226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its digits is 10752, while the sum is 34.

The square root of 1878226 is about 1370.4838561618. The cubic root of 1878226 is about 123.3812831979.

The spelling of 1878226 in words is "one million, eight hundred seventy-eight thousand, two hundred twenty-six".