49423839 has 8 divisors (see below), whose sum is σ = 66230400. Its totient is φ = 32783256.

The previous prime is 49423831. The next prime is 49423841. The reversal of 49423839 is 93832494.

It is a happy number.

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

It is not a de Polignac number, because 49423839 - 2³ = 49423831 is a prime.

It is a super-2 number, since 2×49423839² = 4885431722995842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49423839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49423831) 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, 40797 + ... + 41990.

It is an arithmetic number, because the mean of its divisors is an integer number (8278800).

Almost surely, 2^49423839 is an apocalyptic number.

49423839 is a deficient number, since it is larger than the sum of its proper divisors (16806561).

49423839 is a wasteful number, since it uses less digits than its factorization.

49423839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82989.

The product of its digits is 186624, while the sum is 42.

The square root of 49423839 is about 7030.2090296093. The cubic root of 49423839 is about 366.9826159208.

The spelling of 49423839 in words is "forty-nine million, four hundred twenty-three thousand, eight hundred thirty-nine".