10420442 has 8 divisors (see below), whose sum is σ = 15676500. Its totient is φ = 5194944.

The previous prime is 10420441. The next prime is 10420451. The reversal of 10420442 is 24402401.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 1062961 = 3059^2 + 1031^2 .

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

It is a super-2 number, since 2×10420442² = 217171222950728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10420442.

It is not an unprimeable number, because it can be changed into a prime (10420441) 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 in 3 ways as a sum of consecutive naturals, for example, 6767 + ... + 8162.

Almost surely, 2^10420442 is an apocalyptic number.

10420442 is a deficient number, since it is larger than the sum of its proper divisors (5256058).

10420442 is a wasteful number, since it uses less digits than its factorization.

10420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15280.

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

The square root of 10420442 is about 3228.0709409801. The cubic root of 10420442 is about 218.4214974568.

Adding to 10420442 its reverse (24402401), we get a palindrome (34822843).

The spelling of 10420442 in words is "ten million, four hundred twenty thousand, four hundred forty-two".