4200538 has 4 divisors (see below), whose sum is σ = 6300810. Its totient is φ = 2100268.

The previous prime is 4200529. The next prime is 4200583. The reversal of 4200538 is 8350024.

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., 4108729 + 91809 = 2027^2 + 303^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050133 + ... + 1050136.

Almost surely, 2^4200538 is an apocalyptic number.

4200538 is a deficient number, since it is larger than the sum of its proper divisors (2100272).

4200538 is a wasteful number, since it uses less digits than its factorization.

4200538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100271.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4200538 is about 2049.5214075486. The cubic root of 4200538 is about 161.3497533925.

The spelling of 4200538 in words is "four million, two hundred thousand, five hundred thirty-eight".