20283734 has 16 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 9779880.

The previous prime is 20283727. The next prime is 20283751. The reversal of 20283734 is 43738202.

It is a super-2 number, since 2×20283734² = 822859729965512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20283697 and 20283706.

It is a congruent number.

It is an unprimeable number.

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, 29357 + ... + 30039.

It is an arithmetic number, because the mean of its divisors is an integer number (1969920).

Almost surely, 2^20283734 is an apocalyptic number.

20283734 is a deficient number, since it is larger than the sum of its proper divisors (11234986).

20283734 is a wasteful number, since it uses less digits than its factorization.

20283734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 20283734 is about 4503.7466625022. The cubic root of 20283734 is about 272.7193598849.

The spelling of 20283734 in words is "twenty million, two hundred eighty-three thousand, seven hundred thirty-four".