49309239 has 24 divisors (see below), whose sum is σ = 77934960. Its totient is φ = 27640704.

The previous prime is 49309219. The next prime is 49309241. The reversal of 49309239 is 93290394.

It is not a de Polignac number, because 49309239 - 2⁵ = 49309207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49309197 and 49309206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49309219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4627 + ... + 10955.

It is an arithmetic number, because the mean of its divisors is an integer number (3247290).

Almost surely, 2^49309239 is an apocalyptic number.

49309239 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49309239 is a deficient number, since it is larger than the sum of its proper divisors (28625721).

49309239 is a wasteful number, since it uses less digits than its factorization.

49309239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399 (or 6392 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 49309239 is about 7022.0537594069. The cubic root of 49309239 is about 366.6987532068.

The spelling of 49309239 in words is "forty-nine million, three hundred nine thousand, two hundred thirty-nine".