49140879 has 8 divisors (see below), whose sum is σ = 66197040. Its totient is φ = 32422656.

The previous prime is 49140869. The next prime is 49140887. The reversal of 49140879 is 97804194.

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

It is not a de Polignac number, because 49140879 - 2¹⁹ = 48616591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49140879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49140869) 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, 84144 + ... + 84725.

It is an arithmetic number, because the mean of its divisors is an integer number (8274630).

Almost surely, 2^49140879 is an apocalyptic number.

49140879 is a deficient number, since it is larger than the sum of its proper divisors (17056161).

49140879 is a wasteful number, since it uses less digits than its factorization.

49140879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168969.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 49140879 is about 7010.0555632605. The cubic root of 49140879 is about 366.2809288685.

The spelling of 49140879 in words is "forty-nine million, one hundred forty thousand, eight hundred seventy-nine".