22072634 has 4 divisors (see below), whose sum is σ = 33108954. Its totient is φ = 11036316.

The previous prime is 22072627. The next prime is 22072639. The reversal of 22072634 is 43627022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43627022 = 2 ⋅21813511.

It can be written as a sum of positive squares in only one way, i.e., 19333609 + 2739025 = 4397^2 + 1655^2 .

It is not an unprimeable number, because it can be changed into a prime (22072639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5518157 + ... + 5518160.

Almost surely, 2^22072634 is an apocalyptic number.

22072634 is a deficient number, since it is larger than the sum of its proper divisors (11036320).

22072634 is a wasteful number, since it uses less digits than its factorization.

22072634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036319.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22072634 is about 4698.1521899572. The cubic root of 22072634 is about 280.5119629961.

Adding to 22072634 its reverse (43627022), we get a palindrome (65699656).

The spelling of 22072634 in words is "twenty-two million, seventy-two thousand, six hundred thirty-four".