10020538 has 8 divisors (see below), whose sum is σ = 16397280. Its totient is φ = 4554780.

The previous prime is 10020509. The next prime is 10020547. The reversal of 10020538 is 83502001.

It is a happy number.

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

It is a super-2 number, since 2×10020538² = 200822363618888, which contains 22 as substring.

It is an unprimeable number.

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, 227718 + ... + 227761.

It is an arithmetic number, because the mean of its divisors is an integer number (2049660).

Almost surely, 2^10020538 is an apocalyptic number.

10020538 is a deficient number, since it is larger than the sum of its proper divisors (6376742).

10020538 is a wasteful number, since it uses less digits than its factorization.

10020538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455492.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10020538 is about 3165.5233374594. The cubic root of 10020538 is about 215.5908607437.

Adding to 10020538 its reverse (83502001), we get a palindrome (93522539).

The spelling of 10020538 in words is "ten million, twenty thousand, five hundred thirty-eight".