45448578 has 54 divisors (see below), whose sum is σ = 115055811. Its totient is φ = 12928104.

The previous prime is 45448561. The next prime is 45448583. The reversal of 45448578 is 87584454.

It can be written as a sum of positive squares in only one way, i.e., 22724289 + 22724289 = 4767^2 + 4767^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4767.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 200101 + ... + 200327.

Almost surely, 2^45448578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45448578

45448578 is an abundant number, since it is smaller than the sum of its proper divisors (69607233).

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

45448578 is a wasteful number, since it uses less digits than its factorization.

45448578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 239 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 45448578 is about 6741.5560518325. The cubic root of 45448578 is about 356.8673093955.

The spelling of 45448578 in words is "forty-five million, four hundred forty-eight thousand, five hundred seventy-eight".