45918378 has 48 divisors (see below), whose sum is σ = 112050432. Its totient is φ = 13464000.

The previous prime is 45918371. The next prime is 45918391. The reversal of 45918378 is 87381954.

45918378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45918371) 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 23 ways as a sum of consecutive naturals, for example, 2398 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (2334384).

Almost surely, 2^45918378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45918378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56025216).

45918378 is an abundant number, since it is smaller than the sum of its proper divisors (66132054).

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

45918378 is a wasteful number, since it uses less digits than its factorization.

45918378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531 (or 7528 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 45918378 is about 6776.3100578412. The cubic root of 45918378 is about 358.0927373328.

The spelling of 45918378 in words is "forty-five million, nine hundred eighteen thousand, three hundred seventy-eight".