20734772 has 12 divisors (see below), whose sum is σ = 37130016. Its totient is φ = 10126200.

The previous prime is 20734771. The next prime is 20734793. The reversal of 20734772 is 27743702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20734771) 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, 60104 + ... + 60447.

It is an arithmetic number, because the mean of its divisors is an integer number (3094168).

Almost surely, 2^20734772 is an apocalyptic number.

It is an amenable number.

20734772 is a deficient number, since it is larger than the sum of its proper divisors (16395244).

20734772 is a wasteful number, since it uses less digits than its factorization.

20734772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120598 (or 120596 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 20734772 is about 4553.5449926403. The cubic root of 20734772 is about 274.7259948454.

The spelling of 20734772 in words is "twenty million, seven hundred thirty-four thousand, seven hundred seventy-two".