405002022 has 8 divisors (see below), whose sum is σ = 810004056. Its totient is φ = 135000672.

The previous prime is 405001981. The next prime is 405002047. The reversal of 405002022 is 220200504.

It is a sphenic number, since it is the product of 3 distinct primes.

405002022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 405001992 and 405002010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33750163 + ... + 33750174.

It is an arithmetic number, because the mean of its divisors is an integer number (101250507).

Almost surely, 2^405002022 is an apocalyptic number.

405002022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

405002022 is a wasteful number, since it uses less digits than its factorization.

405002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67500342.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 405002022 is about 20124.6620344293. The cubic root of 405002022 is about 739.8648535763.

Adding to 405002022 its reverse (220200504), we get a palindrome (625202526).

The spelling of 405002022 in words is "four hundred five million, two thousand, twenty-two".