338458642 has 4 divisors (see below), whose sum is σ = 507687966. Its totient is φ = 169229320.

The previous prime is 338458619. The next prime is 338458663. The reversal of 338458642 is 246854833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246854833 = 9241 ⋅26713.

It can be written as a sum of positive squares in only one way, i.e., 227135041 + 111323601 = 15071^2 + 10551^2 .

It is a super-2 number, since 2×338458642² = 229108504688968328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84614659 + ... + 84614662.

Almost surely, 2^338458642 is an apocalyptic number.

338458642 is a deficient number, since it is larger than the sum of its proper divisors (169229324).

338458642 is a wasteful number, since it uses less digits than its factorization.

338458642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169229323.

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

The square root of 338458642 is about 18397.2455003460. The cubic root of 338458642 is about 696.8969051464.

It can be divided in two parts, 3384 and 58642, that added together give a palindrome (62026).

The spelling of 338458642 in words is "three hundred thirty-eight million, four hundred fifty-eight thousand, six hundred forty-two".