427434165 has 40 divisors (see below), whose sum is σ = 806556960. Its totient is φ = 215962848.

The previous prime is 427434157. The next prime is 427434181. The reversal of 427434165 is 561434724.

It is not a de Polignac number, because 427434165 - 2³ = 427434157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20079 + ... + 35468.

It is an arithmetic number, because the mean of its divisors is an integer number (20163924).

Almost surely, 2^427434165 is an apocalyptic number.

427434165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

427434165 is a deficient number, since it is larger than the sum of its proper divisors (379122795).

427434165 is a wasteful number, since it uses less digits than its factorization.

427434165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55583 (or 55574 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 427434165 is about 20674.4810092055. The cubic root of 427434165 is about 753.2799549504.

Adding to 427434165 its reverse (561434724), we get a palindrome (988868889).

The spelling of 427434165 in words is "four hundred twenty-seven million, four hundred thirty-four thousand, one hundred sixty-five".