49729872 has 20 divisors (see below), whose sum is σ = 128468960. Its totient is φ = 16576608.

The previous prime is 49729871. The next prime is 49729937. The reversal of 49729872 is 27892794.

49729872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1036039 = 49729872 / (4 + 9 + 7 + 2 + 9 + 8 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49729871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517972 + ... + 518067.

It is an arithmetic number, because the mean of its divisors is an integer number (6423448).

Almost surely, 2^49729872 is an apocalyptic number.

It is an amenable number.

49729872 is an abundant number, since it is smaller than the sum of its proper divisors (78739088).

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

49729872 is a wasteful number, since it uses less digits than its factorization.

49729872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036050 (or 1036044 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 49729872 is about 7051.9410093959. The cubic root of 49729872 is about 367.7385114664.

The spelling of 49729872 in words is "forty-nine million, seven hundred twenty-nine thousand, eight hundred seventy-two".