4200442 has 4 divisors (see below), whose sum is σ = 6300666. Its totient is φ = 2100220.

The previous prime is 4200439. The next prime is 4200451. The reversal of 4200442 is 2440024.

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., 3493161 + 707281 = 1869^2 + 841^2 .

It is an unprimeable number.

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, 1050109 + ... + 1050112.

Almost surely, 2^4200442 is an apocalyptic number.

4200442 is a deficient number, since it is larger than the sum of its proper divisors (2100224).

4200442 is a wasteful number, since it uses less digits than its factorization.

4200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100223.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4200442 is about 2049.4979873130. The cubic root of 4200442 is about 161.3485242092.

Adding to 4200442 its reverse (2440024), we get a palindrome (6640466).

The spelling of 4200442 in words is "four million, two hundred thousand, four hundred forty-two".