20049995 has 16 divisors (see below), whose sum is σ = 27622848. Its totient is φ = 13685760.

The previous prime is 20049989. The next prime is 20050003. The reversal of 20049995 is 59994002.

It is not a de Polignac number, because 20049995 - 2⁴ = 20049979 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7247 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (1726428).

Almost surely, 2^20049995 is an apocalyptic number.

20049995 is a deficient number, since it is larger than the sum of its proper divisors (7572853).

20049995 is a wasteful number, since it uses less digits than its factorization.

20049995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 20049995 is about 4477.7220771281. The cubic root of 20049995 is about 271.6677523052.

The spelling of 20049995 in words is "twenty million, forty-nine thousand, nine hundred ninety-five".