2042280 has 128 divisors (see below), whose sum is σ = 7142400. Its totient is φ = 518400.

The previous prime is 2042273. The next prime is 2042281. The reversal of 2042280 is 822402.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33450 + ... + 33510.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2^2042280 is an apocalyptic number.

2042280 is a gapful number since it is divisible by the number (20) 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 2042280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3571200).

2042280 is an abundant number, since it is smaller than the sum of its proper divisors (5100120).

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

2042280 is a wasteful number, since it uses less digits than its factorization.

2042280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2042280 is about 1429.0836224658. The cubic root of 2042280 is about 126.8737456095.

Adding to 2042280 its reverse (822402), we get a palindrome (2864682).

It can be divided in two parts, 20422 and 80, that added together give a palindrome (20502).

The spelling of 2042280 in words is "two million, forty-two thousand, two hundred eighty".