10402224 has 80 divisors (see below), whose sum is σ = 31164672. Its totient is φ = 2928384.

The previous prime is 10402211. The next prime is 10402229. The reversal of 10402224 is 42220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402229) 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, 27702 + ... + 28074.

Almost surely, 2^10402224 is an apocalyptic number.

10402224 is a gapful number since it is divisible by the number (14) 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 10402224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15582336).

10402224 is an abundant number, since it is smaller than the sum of its proper divisors (20762448).

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

10402224 is a wasteful number, since it uses less digits than its factorization.

10402224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 10402224 is about 3225.2478974491. The cubic root of 10402224 is about 218.2941348479.

Adding to 10402224 its reverse (42220401), we get a palindrome (52622625).

The spelling of 10402224 in words is "ten million, four hundred two thousand, two hundred twenty-four".