20442462 has 32 divisors (see below), whose sum is σ = 42384384. Its totient is φ = 6568800.

The previous prime is 20442451. The next prime is 20442467. The reversal of 20442462 is 26424402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19512 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (1324512).

Almost surely, 2^20442462 is an apocalyptic number.

20442462 is an abundant number, since it is smaller than the sum of its proper divisors (21941922).

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

20442462 is a wasteful number, since it uses less digits than its factorization.

20442462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 20442462 is about 4521.3340951538. The cubic root of 20442462 is about 273.4288901801.

Adding to 20442462 its reverse (26424402), we get a palindrome (46866864).

The spelling of 20442462 in words is "twenty million, four hundred forty-two thousand, four hundred sixty-two".