20274733 has 2 divisors, whose sum is σ = 20274734. Its totient is φ = 20274732.

The previous prime is 20274703. The next prime is 20274769. The reversal of 20274733 is 33747202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19027044 + 1247689 = 4362^2 + 1117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20274733 is a prime.

It is a super-2 number, since 2×20274733² = 822129596442578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20274703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10137366 + 10137367.

It is an arithmetic number, because the mean of its divisors is an integer number (10137367).

Almost surely, 2^20274733 is an apocalyptic number.

It is an amenable number.

20274733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20274733 is an equidigital number, since it uses as much as digits as its factorization.

20274733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 20274733 is about 4502.7472724993. The cubic root of 20274733 is about 272.6790137608.

The spelling of 20274733 in words is "twenty million, two hundred seventy-four thousand, seven hundred thirty-three".