427218075 has 72 divisors (see below), whose sum is σ = 823938336. Its totient is φ = 210816000.

The previous prime is 427218061. The next prime is 427218079. The reversal of 427218075 is 570812724.

It is not a de Polignac number, because 427218075 - 2¹² = 427213979 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (427218079) 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 71 ways as a sum of consecutive naturals, for example, 232410 + ... + 234240.

It is an arithmetic number, because the mean of its divisors is an integer number (11443588).

Almost surely, 2^427218075 is an apocalyptic number.

427218075 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

427218075 is a deficient number, since it is larger than the sum of its proper divisors (396720261).

427218075 is a wasteful number, since it uses less digits than its factorization.

427218075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 427218075 is about 20669.2543406868. The cubic root of 427218075 is about 753.1529929392.

The spelling of 427218075 in words is "four hundred twenty-seven million, two hundred eighteen thousand, seventy-five".