22072427 has 8 divisors (see below), whose sum is σ = 23807280. Its totient is φ = 20342880.

The previous prime is 22072411. The next prime is 22072429. The reversal of 22072427 is 72427022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22072427 - 2⁴ = 22072411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22072396 and 22072405.

It is not an unprimeable number, because it can be changed into a prime (22072429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13652 + ... + 15182.

It is an arithmetic number, because the mean of its divisors is an integer number (2975910).

Almost surely, 2^22072427 is an apocalyptic number.

22072427 is a deficient number, since it is larger than the sum of its proper divisors (1734853).

22072427 is a wasteful number, since it uses less digits than its factorization.

22072427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 22072427 is about 4698.1301599679. The cubic root of 22072427 is about 280.5110861009.

Adding to 22072427 its reverse (72427022), we get a palindrome (94499449).

The spelling of 22072427 in words is "twenty-two million, seventy-two thousand, four hundred twenty-seven".