10021746 has 32 divisors (see below), whose sum is σ = 23529600. Its totient is φ = 2785536.

The previous prime is 10021741. The next prime is 10021747. The reversal of 10021746 is 64712001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10021741) 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 15 ways as a sum of consecutive naturals, for example, 1671 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (735300).

Almost surely, 2^10021746 is an apocalyptic number.

10021746 is an abundant number, since it is smaller than the sum of its proper divisors (13507854).

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

10021746 is a wasteful number, since it uses less digits than its factorization.

10021746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 10021746 is about 3165.7141374420. The cubic root of 10021746 is about 215.5995237282.

Adding to 10021746 its reverse (64712001), we get a palindrome (74733747).

The spelling of 10021746 in words is "ten million, twenty-one thousand, seven hundred forty-six".