10421208 has 192 divisors, whose sum is σ = 35942400. Its totient is φ = 2661120.

The previous prime is 10421207. The next prime is 10421233. The reversal of 10421208 is 80212401.

10421208 = 102² + 103² + ... + 318².

10421208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336153 + ... + 336183.

It is an arithmetic number, because the mean of its divisors is an integer number (187200).

Almost surely, 2^10421208 is an apocalyptic number.

10421208 is a gapful number since it is divisible by the number (18) 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 10421208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17971200).

10421208 is an abundant number, since it is smaller than the sum of its proper divisors (25521192).

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

10421208 is a wasteful number, since it uses less digits than its factorization.

10421208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 10421208 is about 3228.1895855107. The cubic root of 10421208 is about 218.4268493336.

Adding to 10421208 its reverse (80212401), we get a palindrome (90633609).

It can be divided in two parts, 104 and 21208, that added together give a palindrome (21312).

The spelling of 10421208 in words is "ten million, four hundred twenty-one thousand, two hundred eight".