405423248 has 40 divisors (see below), whose sum is σ = 814769280. Its totient is φ = 195198080.

The previous prime is 405423247. The next prime is 405423281. The reversal of 405423248 is 842324504.

It is not an unprimeable number, because it can be changed into a prime (405423247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215753 + ... + 217623.

It is an arithmetic number, because the mean of its divisors is an integer number (20369232).

Almost surely, 2^405423248 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 405423248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407384640).

405423248 is an abundant number, since it is smaller than the sum of its proper divisors (409346032).

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

405423248 is a wasteful number, since it uses less digits than its factorization.

405423248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 405423248 is about 20135.1247326656. The cubic root of 405423248 is about 740.1212657367.

The spelling of 405423248 in words is "four hundred five million, four hundred twenty-three thousand, two hundred forty-eight".