45048447 has 16 divisors (see below), whose sum is σ = 67872000. Its totient is φ = 29522232.

The previous prime is 45048433. The next prime is 45048469. The reversal of 45048447 is 74484054.

It is not a de Polignac number, because 45048447 - 2¹⁵ = 45015679 is a prime.

It is a super-2 number, since 2×45048447² = 4058725154223618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45048347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12547 + ... + 15732.

It is an arithmetic number, because the mean of its divisors is an integer number (4242000).

Almost surely, 2^45048447 is an apocalyptic number.

45048447 is a deficient number, since it is larger than the sum of its proper divisors (22823553).

45048447 is a wasteful number, since it uses less digits than its factorization.

45048447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28347 (or 28341 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 45048447 is about 6711.8139872914. The cubic root of 45048447 is about 355.8169297132.

The spelling of 45048447 in words is "forty-five million, forty-eight thousand, four hundred forty-seven".