20049164 has 12 divisors (see below), whose sum is σ = 35942088. Its totient is φ = 9780000.

The previous prime is 20049151. The next prime is 20049167. The reversal of 20049164 is 46194002.

It is not an unprimeable number, because it can be changed into a prime (20049167) 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, 60962 + ... + 61289.

It is an arithmetic number, because the mean of its divisors is an integer number (2995174).

Almost surely, 2^20049164 is an apocalyptic number.

It is an amenable number.

20049164 is a deficient number, since it is larger than the sum of its proper divisors (15892924).

20049164 is a wasteful number, since it uses less digits than its factorization.

20049164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122296 (or 122294 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20049164 is about 4477.6292834490. The cubic root of 20049164 is about 271.6639990370.

The spelling of 20049164 in words is "twenty million, forty-nine thousand, one hundred sixty-four".