258405422 has 24 divisors (see below), whose sum is σ = 434108808. Its totient is φ = 115235120.

The previous prime is 258405421. The next prime is 258405439. The reversal of 258405422 is 224504852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258405421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2753 + ... + 22899.

It is an arithmetic number, because the mean of its divisors is an integer number (18087867).

Almost surely, 2^258405422 is an apocalyptic number.

258405422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

258405422 is a deficient number, since it is larger than the sum of its proper divisors (175703386).

258405422 is a wasteful number, since it uses less digits than its factorization.

258405422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224 (or 20213 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 258405422 is about 16074.9936858463. The cubic root of 258405422 is about 636.9429583353.

The spelling of 258405422 in words is "two hundred fifty-eight million, four hundred five thousand, four hundred twenty-two".