445026490 has 8 divisors (see below), whose sum is σ = 801047700. Its totient is φ = 178010592.

The previous prime is 445026481. The next prime is 445026497. The reversal of 445026490 is 94620544.

It can be written as a sum of positive squares in 2 ways, for example, as 433514041 + 11512449 = 20821^2 + 3393^2 .

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 (445026497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22251315 + ... + 22251334.

Almost surely, 2^445026490 is an apocalyptic number.

445026490 is a deficient number, since it is larger than the sum of its proper divisors (356021210).

445026490 is a wasteful number, since it uses less digits than its factorization.

445026490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44502656.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 445026490 is about 21095.6509736012. The cubic root of 445026490 is about 763.4758209671.

The spelling of 445026490 in words is "four hundred forty-five million, twenty-six thousand, four hundred ninety".