45417578 has 4 divisors (see below), whose sum is σ = 68126370. Its totient is φ = 22708788.

The previous prime is 45417577. The next prime is 45417583. The reversal of 45417578 is 87571454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25230529 + 20187049 = 5023^2 + 4493^2 .

It is not an unprimeable number, because it can be changed into a prime (45417577) 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 as a sum of consecutive naturals, namely, 11354393 + ... + 11354396.

Almost surely, 2^45417578 is an apocalyptic number.

45417578 is a deficient number, since it is larger than the sum of its proper divisors (22708792).

45417578 is a wasteful number, since it uses less digits than its factorization.

45417578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22708791.

The product of its digits is 156800, while the sum is 41.

The square root of 45417578 is about 6739.2564871802. The cubic root of 45417578 is about 356.7861524535.

The spelling of 45417578 in words is "forty-five million, four hundred seventeen thousand, five hundred seventy-eight".