405343056 has 40 divisors (see below), whose sum is σ = 1072681344. Its totient is φ = 131818240.

The previous prime is 405343031. The next prime is 405343079. The reversal of 405343056 is 650343504.

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, 101016 + ... + 104951.

Almost surely, 2^405343056 is an apocalyptic number.

It is an amenable number.

405343056 is an abundant number, since it is smaller than the sum of its proper divisors (667338288).

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

405343056 is a wasteful number, since it uses less digits than its factorization.

405343056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206019 (or 206013 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 405343056 is about 20133.1332881894. The cubic root of 405343056 is about 740.0724642940.

The spelling of 405343056 in words is "four hundred five million, three hundred forty-three thousand, fifty-six".