20765072 has 20 divisors (see below), whose sum is σ = 40543536. Its totient is φ = 10302240.

The previous prime is 20765051. The next prime is 20765077. The reversal of 20765072 is 27056702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20765077) 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, 2858 + ... + 7049.

Almost surely, 2^20765072 is an apocalyptic number.

It is an amenable number.

20765072 is a deficient number, since it is larger than the sum of its proper divisors (19778464).

20765072 is a wasteful number, since it uses less digits than its factorization.

20765072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10046 (or 10040 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20765072 is about 4556.8708561907. The cubic root of 20765072 is about 274.8597499722.

The spelling of 20765072 in words is "twenty million, seven hundred sixty-five thousand, seventy-two".