423026166 has 32 divisors (see below), whose sum is σ = 890968320. Its totient is φ = 133635744.

The previous prime is 423026159. The next prime is 423026173. The reversal of 423026166 is 661620324.

It is an interprime number because it is at equal distance from previous prime (423026159) and next prime (423026173).

It is a super-2 number, since 2×423026166² = 357902274241319112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981 + ... + 29103.

It is an arithmetic number, because the mean of its divisors is an integer number (27842760).

Almost surely, 2^423026166 is an apocalyptic number.

423026166 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

423026166 is an abundant number, since it is smaller than the sum of its proper divisors (467942154).

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

423026166 is a wasteful number, since it uses less digits than its factorization.

423026166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28260.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 423026166 is about 20567.5999085941. The cubic root of 423026166 is about 750.6815529044.

The spelling of 423026166 in words is "four hundred twenty-three million, twenty-six thousand, one hundred sixty-six".