10021930 has 16 divisors (see below), whose sum is σ = 18989280. Its totient is φ = 3797712.

The previous prime is 10021909. The next prime is 10021933. The reversal of 10021930 is 3912001.

It is a super-4 number, since 4×10021930⁴ (a number of 29 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (10021933) 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, 26184 + ... + 26563.

It is an arithmetic number, because the mean of its divisors is an integer number (1186830).

Almost surely, 2^10021930 is an apocalyptic number.

10021930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021930 is a deficient number, since it is larger than the sum of its proper divisors (8967350).

10021930 is a wasteful number, since it uses less digits than its factorization.

10021930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52773.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 10021930 is about 3165.7431986818. The cubic root of 10021930 is about 215.6008431945.

Adding to 10021930 its reverse (3912001), we get a palindrome (13933931).

The spelling of 10021930 in words is "ten million, twenty-one thousand, nine hundred thirty".