16047020 has 72 divisors (see below), whose sum is σ = 39102000. Its totient is φ = 5512320.

The previous prime is 16047019. The next prime is 16047037. The reversal of 16047020 is 2074061.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 16046983 and 16047001.

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, 45806 + ... + 46154.

Almost surely, 2^16047020 is an apocalyptic number.

16047020 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 16047020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19551000).

16047020 is an abundant number, since it is smaller than the sum of its proper divisors (23054980).

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

16047020 is a wasteful number, since it uses less digits than its factorization.

16047020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 16047020 is about 4005.8731882075. The cubic root of 16047020 is about 252.2308081054.

The spelling of 16047020 in words is "sixteen million, forty-seven thousand, twenty".