405422079 has 4 divisors (see below), whose sum is σ = 540562776. Its totient is φ = 270281384.

The previous prime is 405422029. The next prime is 405422089. The reversal of 405422079 is 970224504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405422079 - 2²⁵ = 371867647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67570344 + ... + 67570349.

It is an arithmetic number, because the mean of its divisors is an integer number (135140694).

Almost surely, 2^405422079 is an apocalyptic number.

405422079 is a deficient number, since it is larger than the sum of its proper divisors (135140697).

405422079 is a wasteful number, since it uses less digits than its factorization.

405422079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135140696.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 405422079 is about 20135.0957037706. The cubic root of 405422079 is about 740.1205543792.

The spelling of 405422079 in words is "four hundred five million, four hundred twenty-two thousand, seventy-nine".