20162072 has 16 divisors (see below), whose sum is σ = 43204560. Its totient is φ = 8640864.

The previous prime is 20162071. The next prime is 20162113. The reversal of 20162072 is 27026102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20162071) 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, 179963 + ... + 180074.

It is an arithmetic number, because the mean of its divisors is an integer number (2700285).

Almost surely, 2^20162072 is an apocalyptic number.

It is an amenable number.

20162072 is an abundant number, since it is smaller than the sum of its proper divisors (23042488).

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

20162072 is a wasteful number, since it uses less digits than its factorization.

20162072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360050 (or 360046 counting only the distinct ones).

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

The square root of 20162072 is about 4490.2195937393. The cubic root of 20162072 is about 272.1730084449.

Adding to 20162072 its reverse (27026102), we get a palindrome (47188174).

The spelling of 20162072 in words is "twenty million, one hundred sixty-two thousand, seventy-two".