405322422 has 16 divisors (see below), whose sum is σ = 845890560. Its totient is φ = 129233192.

The previous prime is 405322367. The next prime is 405322441. The reversal of 405322422 is 224223504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 405322392 and 405322401.

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, 1468422 + ... + 1468697.

It is an arithmetic number, because the mean of its divisors is an integer number (52868160).

Almost surely, 2^405322422 is an apocalyptic number.

405322422 is an abundant number, since it is smaller than the sum of its proper divisors (440568138).

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

405322422 is a wasteful number, since it uses less digits than its factorization.

405322422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937147.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 405322422 is about 20132.6208428014. The cubic root of 405322422 is about 740.0599062775.

Adding to 405322422 its reverse (224223504), we get a palindrome (629545926).

The spelling of 405322422 in words is "four hundred five million, three hundred twenty-two thousand, four hundred twenty-two".