20060442 has 24 divisors (see below), whose sum is σ = 46021716. Its totient is φ = 6293376.

The previous prime is 20060419. The next prime is 20060449. The reversal of 20060442 is 24406002.

20060442 is a `hidden beast` number, since 20 + 0 + 604 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18740241 + 1320201 = 4329^2 + 1149^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20060449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32473 + ... + 33084.

Almost surely, 2^20060442 is an apocalyptic number.

20060442 is an abundant number, since it is smaller than the sum of its proper divisors (25961274).

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

20060442 is a wasteful number, since it uses less digits than its factorization.

20060442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65582 (or 65579 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20060442 is about 4478.8884781830. Note that the first 3 decimals coincide. The cubic root of 20060442 is about 271.7149280479.

Adding to 20060442 its reverse (24406002), we get a palindrome (44466444).

It can be divided in two parts, 20060 and 442, that added together give a palindrome (20502).

The spelling of 20060442 in words is "twenty million, sixty thousand, four hundred forty-two".