20283045 has 8 divisors (see below), whose sum is σ = 32452896. Its totient is φ = 10817616.

The previous prime is 20283037. The next prime is 20283061. The reversal of 20283045 is 54038202.

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

It is not a de Polignac number, because 20283045 - 2³ = 20283037 is a prime.

It is a super-2 number, since 2×20283045² = 822803828944050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676087 + ... + 676116.

It is an arithmetic number, because the mean of its divisors is an integer number (4056612).

Almost surely, 2^20283045 is an apocalyptic number.

It is an amenable number.

20283045 is a deficient number, since it is larger than the sum of its proper divisors (12169851).

20283045 is a wasteful number, since it uses less digits than its factorization.

20283045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352211.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20283045 is about 4503.6701699836. The cubic root of 20283045 is about 272.7162719300.

The spelling of 20283045 in words is "twenty million, two hundred eighty-three thousand, forty-five".