10042442 has 4 divisors (see below), whose sum is σ = 15063666. Its totient is φ = 5021220.

The previous prime is 10042441. The next prime is 10042457. The reversal of 10042442 is 24424001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5424241 + 4618201 = 2329^2 + 2149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10042442.

It is not an unprimeable number, because it can be changed into a prime (10042441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510609 + ... + 2510612.

Almost surely, 2^10042442 is an apocalyptic number.

10042442 is a deficient number, since it is larger than the sum of its proper divisors (5021224).

10042442 is an equidigital number, since it uses as much as digits as its factorization.

10042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021223.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 10042442 is about 3168.9812243054. The cubic root of 10042442 is about 215.7478338704.

Adding to 10042442 its reverse (24424001), we get a palindrome (34466443).

The spelling of 10042442 in words is "ten million, forty-two thousand, four hundred forty-two".