427257481 has 32 divisors (see below), whose sum is σ = 533537280. Its totient is φ = 333849600.

The previous prime is 427257451. The next prime is 427257491. The reversal of 427257481 is 184752724.

It is not a de Polignac number, because 427257481 - 2¹⁵ = 427224713 is a prime.

It is a super-2 number, since 2×427257481² = 365097910140930722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427257421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514975 + ... + 515803.

It is an arithmetic number, because the mean of its divisors is an integer number (16673040).

Almost surely, 2^427257481 is an apocalyptic number.

It is an amenable number.

427257481 is a deficient number, since it is larger than the sum of its proper divisors (106279799).

427257481 is a wasteful number, since it uses less digits than its factorization.

427257481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its digits is 125440, while the sum is 40.

The square root of 427257481 is about 20670.2075703172. The cubic root of 427257481 is about 753.1761488215.

The spelling of 427257481 in words is "four hundred twenty-seven million, two hundred fifty-seven thousand, four hundred eighty-one".