1849980 has 48 divisors (see below), whose sum is σ = 5652864. Its totient is φ = 448320.

The previous prime is 1849979. The next prime is 1850021. The reversal of 1849980 is 899481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (117768).

2^1849980 is an apocalyptic number.

1849980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1849980 is an abundant number, since it is smaller than the sum of its proper divisors (3802884).

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

1849980 is a wasteful number, since it uses less digits than its factorization.

1849980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826 (or 2824 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1849980 is about 1360.1396987075. The cubic root of 1849980 is about 122.7596602389.

The spelling of 1849980 in words is "one million, eight hundred forty-nine thousand, nine hundred eighty".