4445290 has 8 divisors (see below), whose sum is σ = 8001540. Its totient is φ = 1778112.

The previous prime is 4445281. The next prime is 4445303. The reversal of 4445290 is 925444.

It can be written as a sum of positive squares in 2 ways, for example, as 4173849 + 271441 = 2043^2 + 521^2 .

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

It is an unprimeable number.

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, 222255 + ... + 222274.

Almost surely, 2^4445290 is an apocalyptic number.

4445290 is a deficient number, since it is larger than the sum of its proper divisors (3556250).

4445290 is a wasteful number, since it uses less digits than its factorization.

4445290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444536.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4445290 is about 2108.3856383499. The cubic root of 4445290 is about 164.4245642242.

The spelling of 4445290 in words is "four million, four hundred forty-five thousand, two hundred ninety".