20012486 has 32 divisors (see below), whose sum is σ = 33784128. Its totient is φ = 8830080.

The previous prime is 20012479. The next prime is 20012543. The reversal of 20012486 is 68421002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68156 + ... + 68448.

It is an arithmetic number, because the mean of its divisors is an integer number (1055754).

Almost surely, 2^20012486 is an apocalyptic number.

20012486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20012486 is a deficient number, since it is larger than the sum of its proper divisors (13771642).

20012486 is a wasteful number, since it uses less digits than its factorization.

20012486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20012486 is about 4473.5317144288. The cubic root of 20012486 is about 271.4982369392.

Adding to 20012486 its reverse (68421002), we get a palindrome (88433488).

The spelling of 20012486 in words is "twenty million, twelve thousand, four hundred eighty-six".