2072280 has 64 divisors (see below), whose sum is σ = 7107840. Its totient is φ = 473472.

The previous prime is 2072267. The next prime is 2072293. The reversal of 2072280 is 822702.

It is an interprime number because it is at equal distance from previous prime (2072267) and next prime (2072293).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 394 + ... + 2073.

It is an arithmetic number, because the mean of its divisors is an integer number (111060).

2^2072280 is an apocalyptic number.

2072280 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 2072280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3553920).

2072280 is an abundant number, since it is smaller than the sum of its proper divisors (5035560).

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

2072280 is a wasteful number, since it uses less digits than its factorization.

2072280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2072280 is about 1439.5415937027. The cubic root of 2072280 is about 127.4919641225.

Adding to 2072280 its reverse (822702), we get a palindrome (2894982).

It can be divided in two parts, 20722 and 80, that added together give a palindrome (20802).

The spelling of 2072280 in words is "two million, seventy-two thousand, two hundred eighty".