22039142 has 4 divisors (see below), whose sum is σ = 33058716. Its totient is φ = 11019570.

The previous prime is 22039141. The next prime is 22039151. The reversal of 22039142 is 24193022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22039141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5509784 + ... + 5509787.

It is an arithmetic number, because the mean of its divisors is an integer number (8264679).

Almost surely, 2^22039142 is an apocalyptic number.

22039142 is a deficient number, since it is larger than the sum of its proper divisors (11019574).

22039142 is a wasteful number, since it uses less digits than its factorization.

22039142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019573.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22039142 is about 4694.5864567606. The cubic root of 22039142 is about 280.3700125236.

The spelling of 22039142 in words is "twenty-two million, thirty-nine thousand, one hundred forty-two".