10421500 has 48 divisors (see below), whose sum is σ = 23980320. Its totient is φ = 3945600.

The previous prime is 10421491. The next prime is 10421513. The reversal of 10421500 is 512401.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8952 + ... + 10048.

It is an arithmetic number, because the mean of its divisors is an integer number (499590).

Almost surely, 2^10421500 is an apocalyptic number.

10421500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10421500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11990160).

10421500 is an abundant number, since it is smaller than the sum of its proper divisors (13558820).

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

10421500 is a wasteful number, since it uses less digits than its factorization.

10421500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 10421500 is about 3228.2348117818. The cubic root of 10421500 is about 218.4288894057.

Adding to 10421500 its reverse (512401), we get a palindrome (10933901).

Subtracting from 10421500 its reverse (512401), we obtain a palindrome (9909099).

The spelling of 10421500 in words is "ten million, four hundred twenty-one thousand, five hundred".