45091450 has 24 divisors (see below), whose sum is σ = 84709980. Its totient is φ = 17856000.

The previous prime is 45091411. The next prime is 45091451. The reversal of 45091450 is 5419054.

It can be written as a sum of positive squares in 6 ways, for example, as 16136289 + 28955161 = 4017^2 + 5381^2 .

It is not an unprimeable number, because it can be changed into a prime (45091451) 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 in 11 ways as a sum of consecutive naturals, for example, 586 + ... + 9514.

Almost surely, 2^45091450 is an apocalyptic number.

45091450 is a deficient number, since it is larger than the sum of its proper divisors (39618530).

45091450 is a wasteful number, since it uses less digits than its factorization.

45091450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042 (or 9037 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45091450 is about 6715.0167535160. The cubic root of 45091450 is about 355.9301140012.

The spelling of 45091450 in words is "forty-five million, ninety-one thousand, four hundred fifty".