49177728 has 48 divisors (see below), whose sum is σ = 141517350. Its totient is φ = 16392192.

The previous prime is 49177727. The next prime is 49177741. The reversal of 49177728 is 82777194.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44195904 + 4981824 = 6648^2 + 2232^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (49177727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20193 + ... + 22496.

Almost surely, 2^49177728 is an apocalyptic number.

49177728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49177728 is an abundant number, since it is smaller than the sum of its proper divisors (92339622).

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

49177728 is a wasteful number, since it uses less digits than its factorization.

49177728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42709 (or 42694 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 49177728 is about 7012.6833665866. The cubic root of 49177728 is about 366.3724596807.

The spelling of 49177728 in words is "forty-nine million, one hundred seventy-seven thousand, seven hundred twenty-eight".