1322090 has 64 divisors (see below), whose sum is σ = 3172608. Its totient is φ = 384000.

The previous prime is 1322089. The next prime is 1322117. The reversal of 1322090 is 902231.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13040 + ... + 13140.

It is an arithmetic number, because the mean of its divisors is an integer number (49572).

2^1322090 is an apocalyptic number.

1322090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1322090 is an abundant number, since it is smaller than the sum of its proper divisors (1850518).

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

1322090 is a wasteful number, since it uses less digits than its factorization.

1322090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1322090 is about 1149.8217253122. The cubic root of 1322090 is about 109.7539957000.

It can be divided in two parts, 132 and 2090, that added together give a palindrome (2222).

The spelling of 1322090 in words is "one million, three hundred twenty-two thousand, ninety".