20182242 has 16 divisors (see below), whose sum is σ = 41455872. Its totient is φ = 6545520.

The previous prime is 20182219. The next prime is 20182249. The reversal of 20182242 is 24228102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20182249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45234 + ... + 45677.

It is an arithmetic number, because the mean of its divisors is an integer number (2590992).

Almost surely, 2^20182242 is an apocalyptic number.

20182242 is an abundant number, since it is smaller than the sum of its proper divisors (21273630).

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

20182242 is a wasteful number, since it uses less digits than its factorization.

20182242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90953.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20182242 is about 4492.4650249056. The cubic root of 20182242 is about 272.2637382067.

The spelling of 20182242 in words is "twenty million, one hundred eighty-two thousand, two hundred forty-two".