49649109 has 8 divisors (see below), whose sum is σ = 69683040. Its totient is φ = 31357296.

The previous prime is 49649101. The next prime is 49649137. The reversal of 49649109 is 90194694.

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

It is not a de Polignac number, because 49649109 - 2³ = 49649101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49649101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435462 + ... + 435575.

It is an arithmetic number, because the mean of its divisors is an integer number (8710380).

Almost surely, 2^49649109 is an apocalyptic number.

It is an amenable number.

49649109 is a deficient number, since it is larger than the sum of its proper divisors (20033931).

49649109 is a wasteful number, since it uses less digits than its factorization.

49649109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871059.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 49649109 is about 7046.2123868075. The cubic root of 49649109 is about 367.5393303272.

The spelling of 49649109 in words is "forty-nine million, six hundred forty-nine thousand, one hundred nine".