45042458 has 4 divisors (see below), whose sum is σ = 67563690. Its totient is φ = 22521228.

The previous prime is 45042451. The next prime is 45042463. The reversal of 45042458 is 85424054.

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., 42680089 + 2362369 = 6533^2 + 1537^2 .

It is not an unprimeable number, because it can be changed into a prime (45042451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260613 + ... + 11260616.

Almost surely, 2^45042458 is an apocalyptic number.

45042458 is a deficient number, since it is larger than the sum of its proper divisors (22521232).

45042458 is a wasteful number, since it uses less digits than its factorization.

45042458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22521231.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 45042458 is about 6711.3678188578. The cubic root of 45042458 is about 355.8011608971.

The spelling of 45042458 in words is "forty-five million, forty-two thousand, four hundred fifty-eight".