564450890 has 8 divisors (see below), whose sum is σ = 1016011620. Its totient is φ = 225780352.

The previous prime is 564450839. The next prime is 564450893. The reversal of 564450890 is 98054465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 551827081 + 12623809 = 23491^2 + 3553^2 .

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 (564450893) 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, 28222535 + ... + 28222554.

Almost surely, 2^564450890 is an apocalyptic number.

564450890 is a deficient number, since it is larger than the sum of its proper divisors (451560730).

564450890 is a wasteful number, since it uses less digits than its factorization.

564450890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56445096.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 564450890 is about 23758.1752245411. The cubic root of 564450890 is about 826.4350365245.

The spelling of 564450890 in words is "five hundred sixty-four million, four hundred fifty thousand, eight hundred ninety".