20734268 has 6 divisors (see below), whose sum is σ = 36284976. Its totient is φ = 10367132.

The previous prime is 20734267. The next prime is 20734277. The reversal of 20734268 is 86243702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20734267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2591780 + ... + 2591787.

It is an arithmetic number, because the mean of its divisors is an integer number (6047496).

Almost surely, 2^20734268 is an apocalyptic number.

It is an amenable number.

20734268 is a deficient number, since it is larger than the sum of its proper divisors (15550708).

20734268 is a wasteful number, since it uses less digits than its factorization.

20734268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183571 (or 5183569 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 20734268 is about 4553.4896508063. The cubic root of 20734268 is about 274.7237689062.

The spelling of 20734268 in words is "twenty million, seven hundred thirty-four thousand, two hundred sixty-eight".