20061672 has 32 divisors (see below), whose sum is σ = 50265600. Its totient is φ = 6672384.

The previous prime is 20061661. The next prime is 20061673. The reversal of 20061672 is 27616002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20061673) 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, 17913 + ... + 18999.

It is an arithmetic number, because the mean of its divisors is an integer number (1570800).

Almost surely, 2^20061672 is an apocalyptic number.

It is an amenable number.

20061672 is an abundant number, since it is smaller than the sum of its proper divisors (30203928).

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

20061672 is a wasteful number, since it uses less digits than its factorization.

20061672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20061672 is about 4479.0257869318. The cubic root of 20061672 is about 271.7204813076.

Adding to 20061672 its reverse (27616002), we get a palindrome (47677674).

The spelling of 20061672 in words is "twenty million, sixty-one thousand, six hundred seventy-two".