20738266 has 16 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 9712576.

The previous prime is 20738257. The next prime is 20738279. The reversal of 20738266 is 66283702.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6375 + ... + 9061.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^20738266 is an apocalyptic number.

20738266 is a deficient number, since it is larger than the sum of its proper divisors (12356390).

20738266 is a wasteful number, since it uses less digits than its factorization.

20738266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20738266 is about 4553.9286336086. The cubic root of 20738266 is about 274.7414252652.

The spelling of 20738266 in words is "twenty million, seven hundred thirty-eight thousand, two hundred sixty-six".