427043166 has 32 divisors (see below), whose sum is σ = 961790976. Its totient is φ = 125232000.

The previous prime is 427043161. The next prime is 427043209. The reversal of 427043166 is 661340724.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427043161) 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, 102315 + ... + 106406.

It is an arithmetic number, because the mean of its divisors is an integer number (30055968).

Almost surely, 2^427043166 is an apocalyptic number.

427043166 is an abundant number, since it is smaller than the sum of its proper divisors (534747810).

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

427043166 is a wasteful number, since it uses less digits than its factorization.

427043166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208768.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 427043166 is about 20665.0227679526. The cubic root of 427043166 is about 753.0501951516.

The spelling of 427043166 in words is "four hundred twenty-seven million, forty-three thousand, one hundred sixty-six".