16047720 has 192 divisors, whose sum is σ = 58705920. Its totient is φ = 3919104.

The previous prime is 16047673. The next prime is 16047763. The reversal of 16047720 is 2774061.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126297 + ... + 126423.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^16047720 is an apocalyptic number.

16047720 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 16047720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

16047720 is an abundant number, since it is smaller than the sum of its proper divisors (42658200).

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

16047720 is a wasteful number, since it uses less digits than its factorization.

16047720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 16047720 is about 4005.9605589671. The cubic root of 16047720 is about 252.2344756399.

The spelling of 16047720 in words is "sixteen million, forty-seven thousand, seven hundred twenty".