405402422 has 8 divisors (see below), whose sum is σ = 611501400. Its totient is φ = 201568624.

The previous prime is 405402421. The next prime is 405402427. The reversal of 405402422 is 224204504.

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

It is a super-2 number, since 2×405402422² = 328702247526932168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405402421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565847 + ... + 566562.

It is an arithmetic number, because the mean of its divisors is an integer number (76437675).

Almost surely, 2^405402422 is an apocalyptic number.

405402422 is a deficient number, since it is larger than the sum of its proper divisors (206098978).

405402422 is a wasteful number, since it uses less digits than its factorization.

405402422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132590.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 405402422 is about 20134.6075700521. The cubic root of 405402422 is about 740.1085925370.

Adding to 405402422 its reverse (224204504), we get a palindrome (629606926).

The spelling of 405402422 in words is "four hundred five million, four hundred two thousand, four hundred twenty-two".