16120456 has 32 divisors (see below), whose sum is σ = 33871680. Its totient is φ = 7128000.

The previous prime is 16120453. The next prime is 16120457. The reversal of 16120456 is 65402161.

It is a self number, because there is not a number n which added to its sum of digits gives 16120456.

It is not an unprimeable number, because it can be changed into a prime (16120453) 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, 781 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (1058490).

Almost surely, 2^16120456 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 16120456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16935840).

16120456 is an abundant number, since it is smaller than the sum of its proper divisors (17751224).

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

16120456 is a wasteful number, since it uses less digits than its factorization.

16120456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005 (or 5001 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 16120456 is about 4015.0287670202. The cubic root of 16120456 is about 252.6149840647.

The spelling of 16120456 in words is "sixteen million, one hundred twenty thousand, four hundred fifty-six".