49842909 has 54 divisors (see below), whose sum is σ = 82170270. Its totient is φ = 29072736.

The previous prime is 49842907. The next prime is 49842931. The reversal of 49842909 is 90924894.

It can be written as a sum of positive squares in only one way, i.e., 42968025 + 6874884 = 6555^2 + 2622^2 .

It is not a de Polignac number, because 49842909 - 2¹ = 49842907 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49842901) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1718707 + ... + 1718735.

Almost surely, 2^49842909 is an apocalyptic number.

It is an amenable number.

49842909 is a deficient number, since it is larger than the sum of its proper divisors (32327361).

49842909 is a wasteful number, since it uses less digits than its factorization.

49842909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 49842909 is about 7059.9510621533. The cubic root of 49842909 is about 368.0169263048.

The spelling of 49842909 in words is "forty-nine million, eight hundred forty-two thousand, nine hundred nine".