45677778 has 8 divisors (see below), whose sum is σ = 91355568. Its totient is φ = 15225924.

The previous prime is 45677773. The next prime is 45677789. The reversal of 45677778 is 87777654.

It is a sphenic number, since it is the product of 3 distinct primes.

45677778 is an admirable number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 45677778.

It is not an unprimeable number, because it can be changed into a prime (45677771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3806476 + ... + 3806487.

It is an arithmetic number, because the mean of its divisors is an integer number (11419446).

Almost surely, 2^45677778 is an apocalyptic number.

45677778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45677778 is a wasteful number, since it uses less digits than its factorization.

45677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612968.

The product of its digits is 2304960, while the sum is 51.

The square root of 45677778 is about 6758.5337167170. The cubic root of 45677778 is about 357.4662050960.

The spelling of 45677778 in words is "forty-five million, six hundred seventy-seven thousand, seven hundred seventy-eight".