10021494 has 64 divisors (see below), whose sum is σ = 24330240. Its totient is φ = 2691360.

The previous prime is 10021469. The next prime is 10021499. The reversal of 10021494 is 49412001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10021494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021499) 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 31 ways as a sum of consecutive naturals, for example, 55897 + ... + 56075.

It is an arithmetic number, because the mean of its divisors is an integer number (380160).

Almost surely, 2^10021494 is an apocalyptic number.

10021494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12165120).

10021494 is an abundant number, since it is smaller than the sum of its proper divisors (14308746).

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

10021494 is a wasteful number, since it uses less digits than its factorization.

10021494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10021494 is about 3165.6743357459. The cubic root of 10021494 is about 215.5977166067.

Adding to 10021494 its reverse (49412001), we get a palindrome (59433495).

The spelling of 10021494 in words is "ten million, twenty-one thousand, four hundred ninety-four".