20299486 has 16 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 9588888.

The previous prime is 20299457. The next prime is 20299493. The reversal of 20299486 is 68499202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23091 + ... + 23953.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^20299486 is an apocalyptic number.

20299486 is a deficient number, since it is larger than the sum of its proper divisors (11841314).

20299486 is a wasteful number, since it uses less digits than its factorization.

20299486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 20299486 is about 4505.4950893326. The cubic root of 20299486 is about 272.7899380109.

The spelling of 20299486 in words is "twenty million, two hundred ninety-nine thousand, four hundred eighty-six".