423402216 has 128 divisors (see below), whose sum is σ = 1155686400. Its totient is φ = 128874240.

The previous prime is 423402197. The next prime is 423402227. The reversal of 423402216 is 612204324.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1865095 + ... + 1865321.

It is an arithmetic number, because the mean of its divisors is an integer number (9028800).

Almost surely, 2^423402216 is an apocalyptic number.

423402216 is a gapful number since it is divisible by the number (46) 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 423402216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577843200).

423402216 is an abundant number, since it is smaller than the sum of its proper divisors (732284184).

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

423402216 is a wasteful number, since it uses less digits than its factorization.

423402216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 423402216 is about 20576.7396834387. The cubic root of 423402216 is about 750.9039270058.

The spelling of 423402216 in words is "four hundred twenty-three million, four hundred two thousand, two hundred sixteen".