49163440 has 20 divisors (see below), whose sum is σ = 114305184. Its totient is φ = 19665344.

The previous prime is 49163437. The next prime is 49163447. The reversal of 49163440 is 4436194.

49163440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (49163447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307192 + ... + 307351.

Almost surely, 2^49163440 is an apocalyptic number.

49163440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49163440 is an abundant number, since it is smaller than the sum of its proper divisors (65141744).

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

49163440 is a wasteful number, since it uses less digits than its factorization.

49163440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614556 (or 614550 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 49163440 is about 7011.6645669912. The cubic root of 49163440 is about 366.3369745335.

The spelling of 49163440 in words is "forty-nine million, one hundred sixty-three thousand, four hundred forty".