22198741 has 4 divisors (see below), whose sum is σ = 22427692. Its totient is φ = 21969792.

The previous prime is 22198739. The next prime is 22198747. The reversal of 22198741 is 14789122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10536516 + 11662225 = 3246^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 22198741 - 2¹ = 22198739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22198697 and 22198706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198747) 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, 114330 + ... + 114523.

It is an arithmetic number, because the mean of its divisors is an integer number (5606923).

Almost surely, 2^22198741 is an apocalyptic number.

It is an amenable number.

22198741 is a deficient number, since it is larger than the sum of its proper divisors (228951).

22198741 is an equidigital number, since it uses as much as digits as its factorization.

22198741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228950.

The product of its digits is 8064, while the sum is 34.

The square root of 22198741 is about 4711.5539899273. The cubic root of 22198741 is about 281.0451627194.

The spelling of 22198741 in words is "twenty-two million, one hundred ninety-eight thousand, seven hundred forty-one".