5021642 has 8 divisors (see below), whose sum is σ = 7656132. Its totient is φ = 2469600.

The previous prime is 5021641. The next prime is 5021657. The reversal of 5021642 is 2461205.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4844401 + 177241 = 2201^2 + 421^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5021641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20459 + ... + 20702.

Almost surely, 2^5021642 is an apocalyptic number.

5021642 is a deficient number, since it is larger than the sum of its proper divisors (2634490).

5021642 is a wasteful number, since it uses less digits than its factorization.

5021642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41224.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5021642 is about 2240.9020505145. The cubic root of 5021642 is about 171.2439548899.

Adding to 5021642 its reverse (2461205), we get a palindrome (7482847).

The spelling of 5021642 in words is "five million, twenty-one thousand, six hundred forty-two".