385742782 has 4 divisors (see below), whose sum is σ = 578614176. Its totient is φ = 192871390.

The previous prime is 385742743. The next prime is 385742783. The reversal of 385742782 is 287247583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287247583 = 7 ⋅41035369.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385742783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96435694 + ... + 96435697.

It is an arithmetic number, because the mean of its divisors is an integer number (144653544).

Almost surely, 2^385742782 is an apocalyptic number.

385742782 is a deficient number, since it is larger than the sum of its proper divisors (192871394).

385742782 is a wasteful number, since it uses less digits than its factorization.

385742782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192871393.

The product of its digits is 752640, while the sum is 46.

The square root of 385742782 is about 19640.3355877643. The cubic root of 385742782 is about 727.9461767860.

The spelling of 385742782 in words is "three hundred eighty-five million, seven hundred forty-two thousand, seven hundred eighty-two".