405400022 has 16 divisors (see below), whose sum is σ = 619490112. Its totient is φ = 198918720.

The previous prime is 405399959. The next prime is 405400027. The reversal of 405400022 is 220004504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405400027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52898 + ... + 60074.

It is an arithmetic number, because the mean of its divisors is an integer number (38718132).

Almost surely, 2^405400022 is an apocalyptic number.

405400022 is a deficient number, since it is larger than the sum of its proper divisors (214090090).

405400022 is a wasteful number, since it uses less digits than its factorization.

405400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7703.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 405400022 is about 20134.5479710869. The cubic root of 405400022 is about 740.1071320424.

Adding to 405400022 its reverse (220004504), we get a palindrome (625404526).

The spelling of 405400022 in words is "four hundred five million, four hundred thousand, twenty-two".