49278168 has 24 divisors (see below), whose sum is σ = 133461900. Its totient is φ = 16426032.

The previous prime is 49278133. The next prime is 49278169. The reversal of 49278168 is 86187294.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×49278168³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49278169) 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 5 ways as a sum of consecutive naturals, for example, 342138 + ... + 342281.

Almost surely, 2^49278168 is an apocalyptic number.

It is an amenable number.

49278168 is an abundant number, since it is smaller than the sum of its proper divisors (84183732).

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

49278168 is a wasteful number, since it uses less digits than its factorization.

49278168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684431 (or 684424 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 49278168 is about 7019.8410238409. The cubic root of 49278168 is about 366.6217149668.

The spelling of 49278168 in words is "forty-nine million, two hundred seventy-eight thousand, one hundred sixty-eight".