566427690 has 96 divisors (see below), whose sum is σ = 1502032896. Its totient is φ = 148072320.

The previous prime is 566427689. The next prime is 566427707. The reversal of 566427690 is 96724665.

566427690 is a `hidden beast` number, since 566 + 4 + 27 + 69 + 0 = 666.

It is a super-2 number, since 2×566427690² = 641680655997472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1426572 + ... + 1426968.

It is an arithmetic number, because the mean of its divisors is an integer number (15646176).

Almost surely, 2^566427690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566427690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751016448).

566427690 is an abundant number, since it is smaller than the sum of its proper divisors (935605206).

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

566427690 is a wasteful number, since it uses less digits than its factorization.

566427690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 566427690 is about 23799.7413851495. The cubic root of 566427690 is about 827.3986829950.

The spelling of 566427690 in words is "five hundred sixty-six million, four hundred twenty-seven thousand, six hundred ninety".