1801460 has 12 divisors (see below), whose sum is σ = 3783108. Its totient is φ = 720576.

The previous prime is 1801453. The next prime is 1801469. The reversal of 1801460 is 641081.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 1336336 = 682^2 + 1156^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 90073 = 1801460 / (1 + 8 + 0 + 1 + 4 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45017 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (315259).

2^1801460 is an apocalyptic number.

1801460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1801460 is an abundant number, since it is smaller than the sum of its proper divisors (1981648).

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

1801460 is a wasteful number, since it uses less digits than its factorization.

1801460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90082 (or 90080 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1801460 is about 1342.1847860857. The cubic root of 1801460 is about 121.6769199674.

The spelling of 1801460 in words is "one million, eight hundred one thousand, four hundred sixty".