49457728 has 28 divisors (see below), whose sum is σ = 102412800. Its totient is φ = 23652992.

The previous prime is 49457687. The next prime is 49457747. The reversal of 49457728 is 82775494.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15328 + ... + 18271.

It is an arithmetic number, because the mean of its divisors is an integer number (3657600).

Almost surely, 2^49457728 is an apocalyptic number.

It is an amenable number.

49457728 is an abundant number, since it is smaller than the sum of its proper divisors (52955072).

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

49457728 is a wasteful number, since it uses less digits than its factorization.

49457728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33634 (or 33624 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 49457728 is about 7032.6188578651. The cubic root of 49457728 is about 367.0664744573.

The spelling of 49457728 in words is "forty-nine million, four hundred fifty-seven thousand, seven hundred twenty-eight".