20492068 has 12 divisors (see below), whose sum is σ = 36135792. Its totient is φ = 10167560.

The previous prime is 20492063. The next prime is 20492071. The reversal of 20492068 is 86029402.

It is not an unprimeable number, because it can be changed into a prime (20492063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19030 + ... + 20077.

It is an arithmetic number, because the mean of its divisors is an integer number (3011316).

Almost surely, 2^20492068 is an apocalyptic number.

It is an amenable number.

20492068 is a deficient number, since it is larger than the sum of its proper divisors (15643724).

20492068 is a wasteful number, since it uses less digits than its factorization.

20492068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242 (or 39240 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20492068 is about 4526.8165414560. The cubic root of 20492068 is about 273.6498804728.

The spelling of 20492068 in words is "twenty million, four hundred ninety-two thousand, sixty-eight".