427564068 has 72 divisors (see below), whose sum is σ = 1059972480. Its totient is φ = 134118720.

The previous prime is 427564063. The next prime is 427564073. The reversal of 427564068 is 860465724.

It is an interprime number because it is at equal distance from previous prime (427564063) and next prime (427564073).

It is a super-2 number, since 2×427564068² = 365622064489417248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427564061) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 991813 + ... + 992243.

It is an arithmetic number, because the mean of its divisors is an integer number (14721840).

Almost surely, 2^427564068 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 427564068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529986240).

427564068 is an abundant number, since it is smaller than the sum of its proper divisors (632408412).

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

427564068 is a wasteful number, since it uses less digits than its factorization.

427564068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 427564068 is about 20677.6223971713. The cubic root of 427564068 is about 753.3562578626.

The spelling of 427564068 in words is "four hundred twenty-seven million, five hundred sixty-four thousand, sixty-eight".