22380142 has 4 divisors (see below), whose sum is σ = 33570216. Its totient is φ = 11190070.

The previous prime is 22380133. The next prime is 22380181. The reversal of 22380142 is 24108322.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 5595034 + ... + 5595037.

It is an arithmetic number, because the mean of its divisors is an integer number (8392554).

Almost surely, 2^22380142 is an apocalyptic number.

22380142 is a deficient number, since it is larger than the sum of its proper divisors (11190074).

22380142 is a wasteful number, since it uses less digits than its factorization.

22380142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11190073.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 22380142 is about 4730.7654771717. The cubic root of 22380142 is about 281.8086239057.

Adding to 22380142 its reverse (24108322), we get a palindrome (46488464).

It can be divided in two parts, 2238014 and 2, that added together give a square (2238016 = 1496²).

The spelling of 22380142 in words is "twenty-two million, three hundred eighty thousand, one hundred forty-two".