22091460 has 48 divisors (see below), whose sum is σ = 63032256. Its totient is φ = 5779072.

The previous prime is 22091453. The next prime is 22091467. The reversal of 22091460 is 6419022.

It is an interprime number because it is at equal distance from previous prime (22091453) and next prime (22091467).

It is a self number, because there is not a number n which added to its sum of digits gives 22091460.

It is not an unprimeable number, because it can be changed into a prime (22091467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294 + ... + 6653.

It is an arithmetic number, because the mean of its divisors is an integer number (1313172).

Almost surely, 2^22091460 is an apocalyptic number.

22091460 is a gapful number since it is divisible by the number (20) 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 22091460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31516128).

22091460 is an abundant number, since it is smaller than the sum of its proper divisors (40940796).

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

22091460 is a wasteful number, since it uses less digits than its factorization.

22091460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012 (or 7010 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22091460 is about 4700.1553165826. The cubic root of 22091460 is about 280.5916909455.

The spelling of 22091460 in words is "twenty-two million, ninety-one thousand, four hundred sixty".