1222040 has 32 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 483072.

The previous prime is 1222037. The next prime is 1222049. The reversal of 1222040 is 402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5369 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (86940).

2^1222040 is an apocalyptic number.

1222040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222040 is an abundant number, since it is smaller than the sum of its proper divisors (1560040).

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

1222040 is a wasteful number, since it uses less digits than its factorization.

1222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1222040 is about 1105.4591806123. The cubic root of 1222040 is about 106.9124972446.

Adding to 1222040 its reverse (402221), we get a palindrome (1624261).

The spelling of 1222040 in words is "one million, two hundred twenty-two thousand, forty".