1801602 has 48 divisors (see below), whose sum is σ = 4429152. Its totient is φ = 544320.

The previous prime is 1801601. The next prime is 1801619. The reversal of 1801602 is 2061081.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1801601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5178 + ... + 5514.

It is an arithmetic number, because the mean of its divisors is an integer number (92274).

2^1801602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1801602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2214576).

1801602 is an abundant number, since it is smaller than the sum of its proper divisors (2627550).

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

1801602 is a wasteful number, since it uses less digits than its factorization.

1801602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1801602 is about 1342.2376838697. The cubic root of 1801602 is about 121.6801169426.

Adding to 1801602 its reverse (2061081), we get a palindrome (3862683).

The spelling of 1801602 in words is "one million, eight hundred one thousand, six hundred two".