1878228 has 120 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 518400.

The previous prime is 1878223. The next prime is 1878229. The reversal of 1878228 is 8228781.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (14336) is a multiple of the sum of its prime divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1878192 and 1878201.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 60573 + ... + 60603.

2^1878228 is an apocalyptic number.

1878228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927232).

1878228 is an abundant number, since it is smaller than the sum of its proper divisors (3976236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1878228 is a wasteful number, since it uses less digits than its factorization.

1878228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 64 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 1878228 is about 1370.4845858309. The cubic root of 1878228 is about 123.3813269914.

The spelling of 1878228 in words is "one million, eight hundred seventy-eight thousand, two hundred twenty-eight".