16120440 has 96 divisors (see below), whose sum is σ = 59885280. Its totient is φ = 3684096.

The previous prime is 16120411. The next prime is 16120453. The reversal of 16120440 is 4402161.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679 + ... + 5718.

It is an arithmetic number, because the mean of its divisors is an integer number (623805).

Almost surely, 2^16120440 is an apocalyptic number.

16120440 is a gapful number since it is divisible by the number (10) 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 16120440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29942640).

16120440 is an abundant number, since it is smaller than the sum of its proper divisors (43764840).

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

16120440 is a wasteful number, since it uses less digits than its factorization.

16120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421 (or 6414 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 16120440 is about 4015.0267745060. The cubic root of 16120440 is about 252.6149004888.

The spelling of 16120440 in words is "sixteen million, one hundred twenty thousand, four hundred forty".