10421616 has 20 divisors (see below), whose sum is σ = 26922632. Its totient is φ = 3473856.

The previous prime is 10421581. The next prime is 10421617. The reversal of 10421616 is 61612401.

It is a super-2 number, since 2×10421616² = 217220160102912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10421592 and 10421601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108511 + ... + 108606.

Almost surely, 2^10421616 is an apocalyptic number.

10421616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10421616 is an abundant number, since it is smaller than the sum of its proper divisors (16501016).

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

10421616 is a wasteful number, since it uses less digits than its factorization.

10421616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217128 (or 217122 counting only the distinct ones).

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

The square root of 10421616 is about 3228.2527782068. The cubic root of 10421616 is about 218.4296998346.

The spelling of 10421616 in words is "ten million, four hundred twenty-one thousand, six hundred sixteen".