1020180 has 72 divisors (see below), whose sum is σ = 3332448. Its totient is φ = 232512.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020180 is 810201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2767 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (46284).

2^1020180 is an apocalyptic number.

1020180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666224).

1020180 is an abundant number, since it is smaller than the sum of its proper divisors (2312268).

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

1020180 is a wasteful number, since it uses less digits than its factorization.

1020180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1020180 is about 1010.0396031840. The cubic root of 1020180 is about 100.6681919178.

Adding to 1020180 its reverse (810201), we get a palindrome (1830381).

The spelling of 1020180 in words is "one million, twenty thousand, one hundred eighty".