1122620 has 12 divisors (see below), whose sum is σ = 2357544. Its totient is φ = 449040.

The previous prime is 1122599. The next prime is 1122623. The reversal of 1122620 is 262211.

It is a junction number, because it is equal to n+sod(n) for n = 1122595 and 1122604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122623) 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, 28046 + ... + 28085.

It is an arithmetic number, because the mean of its divisors is an integer number (196462).

2^1122620 is an apocalyptic number.

1122620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122620 is an abundant number, since it is smaller than the sum of its proper divisors (1234924).

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

1122620 is a wasteful number, since it uses less digits than its factorization.

1122620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56140 (or 56138 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1122620 is about 1059.5376350088. The cubic root of 1122620 is about 103.9307971571.

Adding to 1122620 its reverse (262211), we get a palindrome (1384831).

The spelling of 1122620 in words is "one million, one hundred twenty-two thousand, six hundred twenty".