22297438 has 8 divisors (see below), whose sum is σ = 35413632. Its totient is φ = 10492896.

The previous prime is 22297427. The next prime is 22297439. The reversal of 22297438 is 83479222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22297397 and 22297406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22297439) 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, 327870 + ... + 327937.

It is an arithmetic number, because the mean of its divisors is an integer number (4426704).

Almost surely, 2^22297438 is an apocalyptic number.

22297438 is a deficient number, since it is larger than the sum of its proper divisors (13116194).

22297438 is a wasteful number, since it uses less digits than its factorization.

22297438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655826.

The product of its digits is 48384, while the sum is 37.

The square root of 22297438 is about 4722.0163066216. The cubic root of 22297438 is about 281.4610617848.

The spelling of 22297438 in words is "twenty-two million, two hundred ninety-seven thousand, four hundred thirty-eight".