45107890 has 8 divisors (see below), whose sum is σ = 81194220. Its totient is φ = 18043152.

The previous prime is 45107873. The next prime is 45107893. The reversal of 45107890 is 9870154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41486481 + 3621409 = 6441^2 + 1903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (45107893) 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 3 ways as a sum of consecutive naturals, for example, 2255385 + ... + 2255404.

Almost surely, 2^45107890 is an apocalyptic number.

45107890 is a deficient number, since it is larger than the sum of its proper divisors (36086330).

45107890 is a wasteful number, since it uses less digits than its factorization.

45107890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510796.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 45107890 is about 6716.2407639989. The cubic root of 45107890 is about 355.9733652168.

The spelling of 45107890 in words is "forty-five million, one hundred seven thousand, eight hundred ninety".