20049994 has 16 divisors (see below), whose sum is σ = 31170816. Its totient is φ = 9662400.

The previous prime is 20049989. The next prime is 20050003. The reversal of 20049994 is 49994002.

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 7 ways as a sum of consecutive naturals, for example, 20034 + ... + 21010.

It is an arithmetic number, because the mean of its divisors is an integer number (1948176).

Almost surely, 2^20049994 is an apocalyptic number.

20049994 is a deficient number, since it is larger than the sum of its proper divisors (11120822).

20049994 is a wasteful number, since it uses less digits than its factorization.

20049994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 20049994 is about 4477.7219654641. The cubic root of 20049994 is about 271.6677477887.

It can be divided in two parts, 2004999 and 4, that added together give a triangular number (2005003 = T₂₀₀₂).

The spelling of 20049994 in words is "twenty million, forty-nine thousand, nine hundred ninety-four".