49148649 has 96 divisors (see below), whose sum is σ = 90979200. Its totient is φ = 25159680.

The previous prime is 49148641. The next prime is 49148653. The reversal of 49148649 is 94684194.

It is not a de Polignac number, because 49148649 - 2³ = 49148641 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (49148641) 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 in 95 ways as a sum of consecutive naturals, for example, 927307 + ... + 927359.

It is an arithmetic number, because the mean of its divisors is an integer number (947700).

Almost surely, 2^49148649 is an apocalyptic number.

It is an amenable number.

49148649 is a deficient number, since it is larger than the sum of its proper divisors (41830551).

49148649 is a wasteful number, since it uses less digits than its factorization.

49148649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 132 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 49148649 is about 7010.6097452361. The cubic root of 49148649 is about 366.3002329109.

The spelling of 49148649 in words is "forty-nine million, one hundred forty-eight thousand, six hundred forty-nine".