20283486 has 32 divisors (see below), whose sum is σ = 42190848. Its totient is φ = 6493920.

The previous prime is 20283467. The next prime is 20283491. The reversal of 20283486 is 68438202.

It is a super-2 number, since 2×20283486² = 822839608624392, which contains 22 as substring.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 30736 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (1318464).

Almost surely, 2^20283486 is an apocalyptic number.

20283486 is an abundant number, since it is smaller than the sum of its proper divisors (21907362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20283486 is a wasteful number, since it uses less digits than its factorization.

20283486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20283486 is about 4503.7191297860. The cubic root of 20283486 is about 272.7182484085.

The spelling of 20283486 in words is "twenty million, two hundred eighty-three thousand, four hundred eighty-six".