1828428 has 24 divisors (see below), whose sum is σ = 4876032. Its totient is φ = 522384.

The previous prime is 1828423. The next prime is 1828433. The reversal of 1828428 is 8248281.

It is an interprime number because it is at equal distance from previous prime (1828423) and next prime (1828433).

It is not an unprimeable number, because it can be changed into a prime (1828423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10800 + ... + 10967.

It is an arithmetic number, because the mean of its divisors is an integer number (203168).

2^1828428 is an apocalyptic number.

It is an amenable number.

1828428 is an abundant number, since it is smaller than the sum of its proper divisors (3047604).

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

1828428 is a wasteful number, since it uses less digits than its factorization.

1828428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21781 (or 21779 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 1828428 is about 1352.1937730961. The cubic root of 1828428 is about 122.2810861851.

The spelling of 1828428 in words is "one million, eight hundred twenty-eight thousand, four hundred twenty-eight".