20113672 has 16 divisors (see below), whose sum is σ = 37933740. Its totient is φ = 9998016.

The previous prime is 20113651. The next prime is 20113673. The reversal of 20113672 is 27631102.

It can be written as a sum of positive squares in 2 ways, for example, as 18610596 + 1503076 = 4314^2 + 1226^2 .

It is not an unprimeable number, because it can be changed into a prime (20113673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5883 + ... + 8650.

Almost surely, 2^20113672 is an apocalyptic number.

It is an amenable number.

20113672 is a deficient number, since it is larger than the sum of its proper divisors (17820068).

20113672 is a wasteful number, since it uses less digits than its factorization.

20113672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14712 (or 14708 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20113672 is about 4484.8268639937. The cubic root of 20113672 is about 271.9550459156.

Adding to 20113672 its reverse (27631102), we get a palindrome (47744774).

The spelling of 20113672 in words is "twenty million, one hundred thirteen thousand, six hundred seventy-two".