10421312 has 56 divisors (see below), whose sum is σ = 22933152. Its totient is φ = 4659200.

The previous prime is 10421311. The next prime is 10421317. The reversal of 10421312 is 21312401.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79487 + ... + 79617.

Almost surely, 2^10421312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11466576).

10421312 is an abundant number, since it is smaller than the sum of its proper divisors (12511840).

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

10421312 is a wasteful number, since it uses less digits than its factorization.

10421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 10421312 is about 3228.2056935703. The cubic root of 10421312 is about 218.4275759390.

Adding to 10421312 its reverse (21312401), we get a palindrome (31733713).

The spelling of 10421312 in words is "ten million, four hundred twenty-one thousand, three hundred twelve".