427115380 has 12 divisors (see below), whose sum is σ = 896942340. Its totient is φ = 170846144.

The previous prime is 427115363. The next prime is 427115389. The reversal of 427115380 is 83511724.

It can be written as a sum of positive squares in 2 ways, for example, as 145009764 + 282105616 = 12042^2 + 16796^2 .

It is a super-3 number, since 3×427115380³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427115389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10677865 + ... + 10677904.

It is an arithmetic number, because the mean of its divisors is an integer number (74745195).

Almost surely, 2^427115380 is an apocalyptic number.

It is an amenable number.

427115380 is an abundant number, since it is smaller than the sum of its proper divisors (469826960).

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

427115380 is a wasteful number, since it uses less digits than its factorization.

427115380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21355778 (or 21355776 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 427115380 is about 20666.7699459785. The cubic root of 427115380 is about 753.0926402767.

The spelling of 427115380 in words is "four hundred twenty-seven million, one hundred fifteen thousand, three hundred eighty".