20849692 has 12 divisors (see below), whose sum is σ = 36673560. Its totient is φ = 10371536.

The previous prime is 20849681. The next prime is 20849713. The reversal of 20849692 is 29694802.

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 3 ways as a sum of consecutive naturals, for example, 12442 + ... + 14017.

It is an arithmetic number, because the mean of its divisors is an integer number (3056130).

Almost surely, 2^20849692 is an apocalyptic number.

It is an amenable number.

20849692 is a deficient number, since it is larger than the sum of its proper divisors (15823868).

20849692 is a wasteful number, since it uses less digits than its factorization.

20849692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660 (or 26658 counting only the distinct ones).

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

The square root of 20849692 is about 4566.1462963860. The cubic root of 20849692 is about 275.2326054019.

The spelling of 20849692 in words is "twenty million, eight hundred forty-nine thousand, six hundred ninety-two".