427318580 has 48 divisors (see below), whose sum is σ = 970752720. Its totient is φ = 157068288.

The previous prime is 427318571. The next prime is 427318589. The reversal of 427318580 is 85813724.

It is an interprime number because it is at equal distance from previous prime (427318571) and next prime (427318589).

It can be written as a sum of positive squares in 8 ways, for example, as 27478564 + 399840016 = 5242^2 + 19996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427318589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55952 + ... + 63128.

It is an arithmetic number, because the mean of its divisors is an integer number (20224015).

Almost surely, 2^427318580 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 427318580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485376360).

427318580 is an abundant number, since it is smaller than the sum of its proper divisors (543434140).

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

427318580 is a wasteful number, since it uses less digits than its factorization.

427318580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428 (or 7426 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 427318580 is about 20671.6854658734. The cubic root of 427318580 is about 753.2120492002.

The spelling of 427318580 in words is "four hundred twenty-seven million, three hundred eighteen thousand, five hundred eighty".