45198788 has 6 divisors (see below), whose sum is σ = 79097886. Its totient is φ = 22599392.

The previous prime is 45198781. The next prime is 45198809. The reversal of 45198788 is 88789154.

45198788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 42094144 + 3104644 = 6488^2 + 1762^2 .

It is not an unprimeable number, because it can be changed into a prime (45198781) 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 as a sum of consecutive naturals, namely, 5649845 + ... + 5649852.

It is an arithmetic number, because the mean of its divisors is an integer number (13182981).

Almost surely, 2^45198788 is an apocalyptic number.

It is an amenable number.

45198788 is a deficient number, since it is larger than the sum of its proper divisors (33899098).

45198788 is a wasteful number, since it uses less digits than its factorization.

45198788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11299701 (or 11299699 counting only the distinct ones).

The product of its digits is 645120, while the sum is 50.

The square root of 45198788 is about 6723.0043879206. The cubic root of 45198788 is about 356.2123149631.

The spelling of 45198788 in words is "forty-five million, one hundred ninety-eight thousand, seven hundred eighty-eight".