564444420 has 24 divisors (see below), whose sum is σ = 1580444544. Its totient is φ = 150518496.

The previous prime is 564444409. The next prime is 564444431. The reversal of 564444420 is 24444465.

It is an interprime number because it is at equal distance from previous prime (564444409) and next prime (564444431).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4703644 + ... + 4703763.

It is an arithmetic number, because the mean of its divisors is an integer number (65851856).

Almost surely, 2^564444420 is an apocalyptic number.

It is an amenable number.

564444420 is an abundant number, since it is smaller than the sum of its proper divisors (1016000124).

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

564444420 is a wasteful number, since it uses less digits than its factorization.

564444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407419 (or 9407417 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The square root of 564444420 is about 23758.0390604949. The cubic root of 564444420 is about 826.4318788508.

Adding to 564444420 its reverse (24444465), we get a palindrome (588888885).

The spelling of 564444420 in words is "five hundred sixty-four million, four hundred forty-four thousand, four hundred twenty".