45198946 has 8 divisors (see below), whose sum is σ = 73013724. Its totient is φ = 20861040.

The previous prime is 45198931. The next prime is 45198949. The reversal of 45198946 is 64989154.

It is a happy number.

45198946 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 2 ways, for example, as 39250225 + 5948721 = 6265^2 + 2439^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 45198896 and 45198905.

It is not an unprimeable number, because it can be changed into a prime (45198949) 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 3 ways as a sum of consecutive naturals, for example, 869185 + ... + 869236.

Almost surely, 2^45198946 is an apocalyptic number.

45198946 is a deficient number, since it is larger than the sum of its proper divisors (27814778).

45198946 is a wasteful number, since it uses less digits than its factorization.

45198946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738436.

The product of its digits is 311040, while the sum is 46.

The square root of 45198946 is about 6723.0161386092. The cubic root of 45198946 is about 356.2127300294.

The spelling of 45198946 in words is "forty-five million, one hundred ninety-eight thousand, nine hundred forty-six".