45811278 has 32 divisors (see below), whose sum is σ = 102229920. Its totient is φ = 15206400.

The previous prime is 45811267. The next prime is 45811279. The reversal of 45811278 is 87211854.

45811278 is a `hidden beast` number, since 4 + 581 + 1 + 2 + 78 = 666.

45811278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45811279) 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, 12228 + ... + 15528.

It is an arithmetic number, because the mean of its divisors is an integer number (3194685).

Almost surely, 2^45811278 is an apocalyptic number.

45811278 is an abundant number, since it is smaller than the sum of its proper divisors (56418642).

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

45811278 is a wasteful number, since it uses less digits than its factorization.

45811278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3563 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 45811278 is about 6768.4029135388. The cubic root of 45811278 is about 357.8141154990.

The spelling of 45811278 in words is "forty-five million, eight hundred eleven thousand, two hundred seventy-eight".