49378945 has 16 divisors (see below), whose sum is σ = 73876608. Its totient is φ = 30781440.

The previous prime is 49378919. The next prime is 49378949. The reversal of 49378945 is 54987394.

49378945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49378945 - 2⁵ = 49378913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49378949) 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 15 ways as a sum of consecutive naturals, for example, 63744 + ... + 64513.

It is an arithmetic number, because the mean of its divisors is an integer number (4617288).

Almost surely, 2^49378945 is an apocalyptic number.

It is an amenable number.

49378945 is a deficient number, since it is larger than the sum of its proper divisors (24497663).

49378945 is a wasteful number, since it uses less digits than its factorization.

49378945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128280.

The product of its digits is 1088640, while the sum is 49.

The square root of 49378945 is about 7027.0153692731. The cubic root of 49378945 is about 366.8714663970.

The spelling of 49378945 in words is "forty-nine million, three hundred seventy-eight thousand, nine hundred forty-five".