45778984 has 8 divisors (see below), whose sum is σ = 85835610. Its totient is φ = 22889488.

The previous prime is 45778981. The next prime is 45779017. The reversal of 45778984 is 48987754.

It can be written as a sum of positive squares in only one way, i.e., 41242084 + 4536900 = 6422^2 + 2130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2861179 + ... + 2861194.

Almost surely, 2^45778984 is an apocalyptic number.

It is an amenable number.

45778984 is a deficient number, since it is larger than the sum of its proper divisors (40056626).

45778984 is a wasteful number, since it uses less digits than its factorization.

45778984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722379 (or 5722375 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 45778984 is about 6766.0168489297. The cubic root of 45778984 is about 357.7300171005.

The spelling of 45778984 in words is "forty-five million, seven hundred seventy-eight thousand, nine hundred eighty-four".