20283733 has 8 divisors (see below), whose sum is σ = 20904408. Its totient is φ = 19666944.

The previous prime is 20283727. The next prime is 20283751. The reversal of 20283733 is 33738202.

It can be written as a sum of positive squares in 4 ways, for example, as 2289169 + 17994564 = 1513^2 + 4242^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20283733 is a prime.

It is a super-2 number, since 2×20283733² = 822859648830578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20283763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12285 + ... + 13837.

It is an arithmetic number, because the mean of its divisors is an integer number (2613051).

Almost surely, 2^20283733 is an apocalyptic number.

It is an amenable number.

20283733 is a deficient number, since it is larger than the sum of its proper divisors (620675).

20283733 is a wasteful number, since it uses less digits than its factorization.

20283733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20283733 is about 4503.7465514836. The cubic root of 20283733 is about 272.7193554032.

The spelling of 20283733 in words is "twenty million, two hundred eighty-three thousand, seven hundred thirty-three".