20042466 has 8 divisors (see below), whose sum is σ = 40084944. Its totient is φ = 6680820.

The previous prime is 20042459. The next prime is 20042467. The reversal of 20042466 is 66424002.

It is a sphenic number, since it is the product of 3 distinct primes.

20042466 is an admirable number.

It is a super-2 number, since 2×20042466² = 803400886722312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20042467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670200 + ... + 1670211.

It is an arithmetic number, because the mean of its divisors is an integer number (5010618).

Almost surely, 2^20042466 is an apocalyptic number.

20042466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20042466 is a wasteful number, since it uses less digits than its factorization.

20042466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340416.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20042466 is about 4476.8812805345. The cubic root of 20042466 is about 271.6337432762.

Adding to 20042466 its reverse (66424002), we get a palindrome (86466468).

The spelling of 20042466 in words is "twenty million, forty-two thousand, four hundred sixty-six".