423661080 has 128 divisors (see below), whose sum is σ = 1360255680. Its totient is φ = 105185280.

The previous prime is 423661039. The next prime is 423661099. The reversal of 423661080 is 80166324.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196810 + ... + 198950.

Almost surely, 2^423661080 is an apocalyptic number.

423661080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423661080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680127840).

423661080 is an abundant number, since it is smaller than the sum of its proper divisors (936594600).

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

423661080 is a wasteful number, since it uses less digits than its factorization.

423661080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 423661080 is about 20583.0289316223. The cubic root of 423661080 is about 751.0569276168.

The spelling of 423661080 in words is "four hundred twenty-three million, six hundred sixty-one thousand, eighty".