49639542 has 8 divisors (see below), whose sum is σ = 99279096. Its totient is φ = 16546512.

The previous prime is 49639529. The next prime is 49639549. The reversal of 49639542 is 24593694.

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

49639542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 49639494 and 49639503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49639549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4136623 + ... + 4136634.

It is an arithmetic number, because the mean of its divisors is an integer number (12409887).

Almost surely, 2^49639542 is an apocalyptic number.

49639542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49639542 is a wasteful number, since it uses less digits than its factorization.

49639542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273262.

The product of its digits is 233280, while the sum is 42.

The square root of 49639542 is about 7045.5334787367. The cubic root of 49639542 is about 367.5157214802.

The spelling of 49639542 in words is "forty-nine million, six hundred thirty-nine thousand, five hundred forty-two".