565979420 has 24 divisors (see below), whose sum is σ = 1191537648. Its totient is φ = 225824000.

The previous prime is 565979387. The next prime is 565979441. The reversal of 565979420 is 24979565.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27266 + ... + 43305.

It is an arithmetic number, because the mean of its divisors is an integer number (49647402).

Almost surely, 2^565979420 is an apocalyptic number.

It is an amenable number.

565979420 is an abundant number, since it is smaller than the sum of its proper divisors (625558228).

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

565979420 is a wasteful number, since it uses less digits than its factorization.

565979420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70981 (or 70979 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 565979420 is about 23790.3219818480. The cubic root of 565979420 is about 827.1803580438.

The spelling of 565979420 in words is "five hundred sixty-five million, nine hundred seventy-nine thousand, four hundred twenty".