10020642 has 16 divisors (see below), whose sum is σ = 20093952. Its totient is φ = 3331440.

The previous prime is 10020641. The next prime is 10020643. The reversal of 10020642 is 24602001.

It is an interprime number because it is at equal distance from previous prime (10020641) and next prime (10020643).

It is not an unprimeable number, because it can be changed into a prime (10020641) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 543 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (1255872).

Almost surely, 2^10020642 is an apocalyptic number.

10020642 is an abundant number, since it is smaller than the sum of its proper divisors (10073310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10020642 is a wasteful number, since it uses less digits than its factorization.

10020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 10020642 is about 3165.5397644004. The cubic root of 10020642 is about 215.5916065909.

Adding to 10020642 its reverse (24602001), we get a palindrome (34622643).

The spelling of 10020642 in words is "ten million, twenty thousand, six hundred forty-two".