564450390 has 64 divisors (see below), whose sum is σ = 1720235520. Its totient is φ = 129016800.

The previous prime is 564450389. The next prime is 564450391. The reversal of 564450390 is 93054465.

It is a happy number.

564450390 is a `hidden beast` number, since 5 + 64 + 4 + 503 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (564450389) and next prime (564450391).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564450391) 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 31 ways as a sum of consecutive naturals, for example, 147436 + ... + 151215.

It is an arithmetic number, because the mean of its divisors is an integer number (26878680).

Almost surely, 2^564450390 is an apocalyptic number.

564450390 is an abundant number, since it is smaller than the sum of its proper divisors (1155785130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

564450390 is a wasteful number, since it uses less digits than its factorization.

564450390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298674 (or 298668 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 564450390 is about 23758.1647018451. The cubic root of 564450390 is about 826.4347925011.

The spelling of 564450390 in words is "five hundred sixty-four million, four hundred fifty thousand, three hundred ninety".