1849420 has 24 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 730752.

The previous prime is 1849399. The next prime is 1849423. The reversal of 1849420 is 249481.

It is not an unprimeable number, because it can be changed into a prime (1849423) 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, 1261 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2^1849420 is an apocalyptic number.

1849420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1849420 is an abundant number, since it is smaller than the sum of its proper divisors (2081780).

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

1849420 is a wasteful number, since it uses less digits than its factorization.

1849420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1849420 is about 1359.9338219193. The cubic root of 1849420 is about 122.7472722946.

It can be divided in two parts, 184 and 9420, that added together give a square (9604 = 98²).

The spelling of 1849420 in words is "one million, eight hundred forty-nine thousand, four hundred twenty".