11322920 has 96 divisors (see below), whose sum is σ = 30472200. Its totient is φ = 3773952.

The previous prime is 11322869. The next prime is 11322931. The reversal of 11322920 is 2922311.

It can be written as a sum of positive squares in 4 ways, for example, as 10640644 + 682276 = 3262^2 + 826^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11322892 and 11322901.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103826 + ... + 103934.

Almost surely, 2^11322920 is an apocalyptic number.

11322920 is a gapful number since it is divisible by the number (10) 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 11322920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15236100).

11322920 is an abundant number, since it is smaller than the sum of its proper divisors (19149280).

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

11322920 is a wasteful number, since it uses less digits than its factorization.

11322920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11322920 is about 3364.9546802297. The cubic root of 11322920 is about 224.5533195775.

The spelling of 11322920 in words is "eleven million, three hundred twenty-two thousand, nine hundred twenty".