20242442 has 32 divisors (see below), whose sum is σ = 34781184. Its totient is φ = 8751600.

The previous prime is 20242433. The next prime is 20242447. The reversal of 20242442 is 24424202.

It is not an unprimeable number, because it can be changed into a prime (20242447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45473 + ... + 45915.

It is an arithmetic number, because the mean of its divisors is an integer number (1086912).

Almost surely, 2^20242442 is an apocalyptic number.

20242442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20242442 is a deficient number, since it is larger than the sum of its proper divisors (14538742).

20242442 is a wasteful number, since it uses less digits than its factorization.

20242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 20242442 is about 4499.1601438491. The cubic root of 20242442 is about 272.5341740941.

Adding to 20242442 its reverse (24424202), we get a palindrome (44666644).

The spelling of 20242442 in words is "twenty million, two hundred forty-two thousand, four hundred forty-two".