20442192 has 20 divisors (see below), whose sum is σ = 52809120. Its totient is φ = 6814048.

The previous prime is 20442179. The next prime is 20442203. The reversal of 20442192 is 29124402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212892 + ... + 212987.

It is an arithmetic number, because the mean of its divisors is an integer number (2640456).

Almost surely, 2^20442192 is an apocalyptic number.

It is an amenable number.

20442192 is an abundant number, since it is smaller than the sum of its proper divisors (32366928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20442192 is a wasteful number, since it uses less digits than its factorization.

20442192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425890 (or 425884 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20442192 is about 4521.3042366114. The cubic root of 20442192 is about 273.4276863765.

Adding to 20442192 its reverse (29124402), we get a palindrome (49566594).

The spelling of 20442192 in words is "twenty million, four hundred forty-two thousand, one hundred ninety-two".