405313332 has 24 divisors (see below), whose sum is σ = 948318336. Its totient is φ = 134734848.

The previous prime is 405313327. The next prime is 405313357. The reversal of 405313332 is 233313504.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41613 + ... + 50420.

It is an arithmetic number, because the mean of its divisors is an integer number (39513264).

Almost surely, 2^405313332 is an apocalyptic number.

It is an amenable number.

405313332 is an abundant number, since it is smaller than the sum of its proper divisors (543005004).

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

405313332 is a wasteful number, since it uses less digits than its factorization.

405313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92407 (or 92405 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 405313332 is about 20132.3950885134. The cubic root of 405313332 is about 740.0543738960.

Adding to 405313332 its reverse (233313504), we get a palindrome (638626836).

The spelling of 405313332 in words is "four hundred five million, three hundred thirteen thousand, three hundred thirty-two".