405223215153240 has 128 divisors (see below), whose sum is σ = 1335725968147200. Its totient is φ = 97529197585920.

The previous prime is 405223215153227. The next prime is 405223215153271. The reversal of 405223215153240 is 42351512322504.

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 31 ways as a sum of consecutive naturals, for example, 1104087327 + ... + 1104454286.

It is an arithmetic number, because the mean of its divisors is an integer number (10435359126150).

Almost surely, 2^{405223215153240} is an apocalyptic number.

405223215153240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

405223215153240 is an abundant number, since it is smaller than the sum of its proper divisors (930502752993960).

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

405223215153240 is a wasteful number, since it uses less digits than its factorization.

405223215153240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208541777 (or 2208541773 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 405223215153240 its reverse (42351512322504), we get a palindrome (447574727475744).

The spelling of 405223215153240 in words is "four hundred five trillion, two hundred twenty-three billion, two hundred fifteen million, one hundred fifty-three thousand, two hundred forty".