45912778 has 16 divisors (see below), whose sum is σ = 73372320. Its totient is φ = 21484656.

The previous prime is 45912773. The next prime is 45912791. The reversal of 45912778 is 87721954.

45912778 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 (45912773) 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 7 ways as a sum of consecutive naturals, for example, 4125 + ... + 10432.

It is an arithmetic number, because the mean of its divisors is an integer number (4585770).

Almost surely, 2^45912778 is an apocalyptic number.

45912778 is a deficient number, since it is larger than the sum of its proper divisors (27459542).

45912778 is a wasteful number, since it uses less digits than its factorization.

45912778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14661.

The product of its digits is 141120, while the sum is 43.

The square root of 45912778 is about 6775.8968410093. The cubic root of 45912778 is about 358.0781796115.

The spelling of 45912778 in words is "forty-five million, nine hundred twelve thousand, seven hundred seventy-eight".