342638458 has 8 divisors (see below), whose sum is σ = 515005920. Its totient is φ = 170969820.

The previous prime is 342638453. The next prime is 342638467. The reversal of 342638458 is 854836243.

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

It is a super-2 number, since 2×342638458² = 234802225801235528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (342638453) 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 3 ways as a sum of consecutive naturals, for example, 173478 + ... + 175441.

It is an arithmetic number, because the mean of its divisors is an integer number (64375740).

Almost surely, 2^342638458 is an apocalyptic number.

342638458 is a deficient number, since it is larger than the sum of its proper divisors (172367462).

342638458 is a wasteful number, since it uses less digits than its factorization.

342638458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349412.

The product of its digits is 552960, while the sum is 43.

The square root of 342638458 is about 18510.4958874688. The cubic root of 342638458 is about 699.7539665964.

The spelling of 342638458 in words is "three hundred forty-two million, six hundred thirty-eight thousand, four hundred fifty-eight".