1072220 has 12 divisors (see below), whose sum is σ = 2251704. Its totient is φ = 428880.

The previous prime is 1072219. The next prime is 1072229. The reversal of 1072220 is 222701.

It is a super-2 number, since 2×1072220² = 2299311456800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1072195 and 1072204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072229) 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, 26786 + ... + 26825.

It is an arithmetic number, because the mean of its divisors is an integer number (187642).

2^1072220 is an apocalyptic number.

1072220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1072220 is an abundant number, since it is smaller than the sum of its proper divisors (1179484).

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

1072220 is a wasteful number, since it uses less digits than its factorization.

1072220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53620 (or 53618 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1072220 is about 1035.4805647621. The cubic root of 1072220 is about 102.3515996446.

Adding to 1072220 its reverse (222701), we get a palindrome (1294921).

The spelling of 1072220 in words is "one million, seventy-two thousand, two hundred twenty".