45509448 has 16 divisors (see below), whose sum is σ = 113773680. Its totient is φ = 15169808.

The previous prime is 45509447. The next prime is 45509449. The reversal of 45509448 is 84490554.

45509448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45509447) and next prime (45509449).

It is a super-2 number, since 2×45509448² = 4142219714529408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45509447) 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, 948090 + ... + 948137.

It is an arithmetic number, because the mean of its divisors is an integer number (7110855).

Almost surely, 2^45509448 is an apocalyptic number.

It is an amenable number.

45509448 is an abundant number, since it is smaller than the sum of its proper divisors (68264232).

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

45509448 is a wasteful number, since it uses less digits than its factorization.

45509448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896236 (or 1896232 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 45509448 is about 6746.0690776185. The cubic root of 45509448 is about 357.0265576678.

The spelling of 45509448 in words is "forty-five million, five hundred nine thousand, four hundred forty-eight".