565004640 has 48 divisors (see below), whose sum is σ = 1779766128. Its totient is φ = 150667776.

The previous prime is 565004623. The next prime is 565004677. The reversal of 565004640 is 46400565.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 565004598 and 565004607.

It is a congruent number.

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, 588067 + ... + 589026.

It is an arithmetic number, because the mean of its divisors is an integer number (37078461).

Almost surely, 2^565004640 is an apocalyptic number.

It is an amenable number.

565004640 is an abundant number, since it is smaller than the sum of its proper divisors (1214761488).

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

565004640 is a wasteful number, since it uses less digits than its factorization.

565004640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177111 (or 1177103 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 565004640 is about 23769.8262509426. The cubic root of 565004640 is about 826.7052040076.

The spelling of 565004640 in words is "five hundred sixty-five million, four thousand, six hundred forty".