564740 has 48 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 192000.

The previous prime is 564713. The next prime is 564761. The reversal of 564740 is 47465.

564740 = T₁₆₅ + T₁₆₆ + ... + T₁₉₈.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3665 + ... + 3815.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2⁵⁶⁴⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689472).

564740 is an abundant number, since it is smaller than the sum of its proper divisors (814204).

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

564740 is a wasteful number, since it uses less digits than its factorization.

564740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 564740 is about 751.4918495899. The cubic root of 564740 is about 82.6576111598.

The spelling of 564740 in words is "five hundred sixty-four thousand, seven hundred forty".