1851828 has 24 divisors (see below), whose sum is σ = 4714080. Its totient is φ = 561120.

The previous prime is 1851821. The next prime is 1851841. The reversal of 1851828 is 8281581.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1851821) 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, 6883 + ... + 7146.

It is an arithmetic number, because the mean of its divisors is an integer number (196420).

2^1851828 is an apocalyptic number.

It is an amenable number.

1851828 is an abundant number, since it is smaller than the sum of its proper divisors (2862252).

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

1851828 is a wasteful number, since it uses less digits than its factorization.

1851828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14047 (or 14045 counting only the distinct ones).

The product of its digits is 5120, while the sum is 33.

The square root of 1851828 is about 1360.8188711214. The cubic root of 1851828 is about 122.8005227266.

The spelling of 1851828 in words is "one million, eight hundred fifty-one thousand, eight hundred twenty-eight".