423820452 has 48 divisors (see below), whose sum is σ = 1086624000. Its totient is φ = 127500960.

The previous prime is 423820433. The next prime is 423820483. The reversal of 423820452 is 254028324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6799 + ... + 29897.

It is an arithmetic number, because the mean of its divisors is an integer number (22638000).

Almost surely, 2^423820452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423820452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543312000).

423820452 is an abundant number, since it is smaller than the sum of its proper divisors (662803548).

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

423820452 is a wasteful number, since it uses less digits than its factorization.

423820452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23256 (or 23254 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 423820452 is about 20586.9000094720. The cubic root of 423820452 is about 751.1510928543.

Adding to 423820452 its reverse (254028324), we get a palindrome (677848776).

The spelling of 423820452 in words is "four hundred twenty-three million, eight hundred twenty thousand, four hundred fifty-two".