45778986 has 32 divisors (see below), whose sum is σ = 110980800. Its totient is φ = 13872240.

The previous prime is 45778981. The next prime is 45779017. The reversal of 45778986 is 68987754.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (45778981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37941 + ... + 39128.

It is an arithmetic number, because the mean of its divisors is an integer number (3468150).

Almost surely, 2^45778986 is an apocalyptic number.

45778986 is an abundant number, since it is smaller than the sum of its proper divisors (65201814).

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

45778986 is a wasteful number, since it uses less digits than its factorization.

45778986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77091 (or 77085 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 45778986 is about 6766.0169967271. The cubic root of 45778986 is about 357.7300223100.

It can be divided in two parts, 45778 and 986, that added together give a palindrome (46764).

The spelling of 45778986 in words is "forty-five million, seven hundred seventy-eight thousand, nine hundred eighty-six".