22026142 has 4 divisors (see below), whose sum is σ = 33039216. Its totient is φ = 11013070.

The previous prime is 22026139. The next prime is 22026161. The reversal of 22026142 is 24162022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24162022 = 2 ⋅12081011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506534 + ... + 5506537.

It is an arithmetic number, because the mean of its divisors is an integer number (8259804).

Almost surely, 2^22026142 is an apocalyptic number.

22026142 is a deficient number, since it is larger than the sum of its proper divisors (11013074).

22026142 is a wasteful number, since it uses less digits than its factorization.

22026142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11013073.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22026142 is about 4693.2016790247. The cubic root of 22026142 is about 280.3148753645.

Adding to 22026142 its reverse (24162022), we get a palindrome (46188164).

It can be divided in two parts, 220 and 26142, that added together give a palindrome (26362).

The spelling of 22026142 in words is "twenty-two million, twenty-six thousand, one hundred forty-two".