385738442 has 8 divisors (see below), whose sum is σ = 578972100. Its totient is φ = 192747744.

The previous prime is 385738429. The next prime is 385738453. The reversal of 385738442 is 244837583.

It can be written as a sum of positive squares in 2 ways, for example, as 299601481 + 86136961 = 17309^2 + 9281^2 .

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

It is a super-4 number, since 4×385738442⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385738393 and 385738402.

It is an unprimeable number.

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, 56717 + ... + 63152.

Almost surely, 2^385738442 is an apocalyptic number.

385738442 is a deficient number, since it is larger than the sum of its proper divisors (193233658).

385738442 is a wasteful number, since it uses less digits than its factorization.

385738442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121480.

The product of its digits is 645120, while the sum is 44.

The square root of 385738442 is about 19640.2251005430. The cubic root of 385738442 is about 727.9434467299.

The spelling of 385738442 in words is "three hundred eighty-five million, seven hundred thirty-eight thousand, four hundred forty-two".