20734712 has 8 divisors (see below), whose sum is σ = 38877600. Its totient is φ = 10367352.

The previous prime is 20734699. The next prime is 20734717. The reversal of 20734712 is 21743702.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20734717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295912 + ... + 1295927.

It is an arithmetic number, because the mean of its divisors is an integer number (4859700).

Almost surely, 2^20734712 is an apocalyptic number.

It is an amenable number.

20734712 is a deficient number, since it is larger than the sum of its proper divisors (18142888).

20734712 is a wasteful number, since it uses less digits than its factorization.

20734712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591845 (or 2591841 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20734712 is about 4553.5384043620. The cubic root of 20734712 is about 274.7257298545.

The spelling of 20734712 in words is "twenty million, seven hundred thirty-four thousand, seven hundred twelve".