49990066 has 8 divisors (see below), whose sum is σ = 85697280. Its totient is φ = 21424308.

The previous prime is 49989991. The next prime is 49990069. The reversal of 49990066 is 66009994.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (49990069) 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, 1785346 + ... + 1785373.

It is an arithmetic number, because the mean of its divisors is an integer number (10712160).

Almost surely, 2^49990066 is an apocalyptic number.

49990066 is a deficient number, since it is larger than the sum of its proper divisors (35707214).

49990066 is a wasteful number, since it uses less digits than its factorization.

49990066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570728.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 49990066 is about 7070.3653370954. The cubic root of 49990066 is about 368.3787501354.

The spelling of 49990066 in words is "forty-nine million, nine hundred ninety thousand, sixty-six".