4219538 has 4 divisors (see below), whose sum is σ = 6329310. Its totient is φ = 2109768.

The previous prime is 4219513. The next prime is 4219549. The reversal of 4219538 is 8359124.

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., 3193369 + 1026169 = 1787^2 + 1013^2 .

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, 1054883 + ... + 1054886.

Almost surely, 2^4219538 is an apocalyptic number.

4219538 is a deficient number, since it is larger than the sum of its proper divisors (2109772).

4219538 is a wasteful number, since it uses less digits than its factorization.

4219538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109771.

The product of its digits is 8640, while the sum is 32.

The square root of 4219538 is about 2054.1514062990. The cubic root of 4219538 is about 161.5926615381.

The spelling of 4219538 in words is "four million, two hundred nineteen thousand, five hundred thirty-eight".