45390472 has 16 divisors (see below), whose sum is σ = 86713740. Its totient is φ = 22266816.

The previous prime is 45390469. The next prime is 45390473. The reversal of 45390472 is 27409354.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 3218436 = 6494^2 + 1794^2 .

It is not an unprimeable number, because it can be changed into a prime (45390473) 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 3 ways as a sum of consecutive naturals, for example, 53103 + ... + 53950.

Almost surely, 2^45390472 is an apocalyptic number.

It is an amenable number.

45390472 is a deficient number, since it is larger than the sum of its proper divisors (41323268).

45390472 is a wasteful number, since it uses less digits than its factorization.

45390472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107112 (or 107108 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 45390472 is about 6737.2451343260. The cubic root of 45390472 is about 356.7151596025.

The spelling of 45390472 in words is "forty-five million, three hundred ninety thousand, four hundred seventy-two".