49019128 has 8 divisors (see below), whose sum is σ = 91910880. Its totient is φ = 24509560.

The previous prime is 49019123. The next prime is 49019171. The reversal of 49019128 is 82191094.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 49019093 and 49019102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49019123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3063688 + ... + 3063703.

It is an arithmetic number, because the mean of its divisors is an integer number (11488860).

Almost surely, 2^49019128 is an apocalyptic number.

It is an amenable number.

49019128 is a deficient number, since it is larger than the sum of its proper divisors (42891752).

49019128 is a wasteful number, since it uses less digits than its factorization.

49019128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6127397 (or 6127393 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 49019128 is about 7001.3661524020. The cubic root of 49019128 is about 365.9781805898.

The spelling of 49019128 in words is "forty-nine million, nineteen thousand, one hundred twenty-eight".