385629722 has 4 divisors (see below), whose sum is σ = 578444586. Its totient is φ = 192814860.

The previous prime is 385629721. The next prime is 385629743. The reversal of 385629722 is 227926583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227926583 = 263 ⋅866641.

It can be written as a sum of positive squares in only one way, i.e., 380289001 + 5340721 = 19501^2 + 2311^2 .

It is not an unprimeable number, because it can be changed into a prime (385629721) 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 as a sum of consecutive naturals, namely, 96407429 + ... + 96407432.

Almost surely, 2^385629722 is an apocalyptic number.

385629722 is a deficient number, since it is larger than the sum of its proper divisors (192814864).

385629722 is a wasteful number, since it uses less digits than its factorization.

385629722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192814863.

The product of its digits is 362880, while the sum is 44.

The square root of 385629722 is about 19637.4571164395. The cubic root of 385629722 is about 727.8750502558.

It can be divided in two parts, 38562 and 9722, that added together give a palindrome (48284).

The spelling of 385629722 in words is "three hundred eighty-five million, six hundred twenty-nine thousand, seven hundred twenty-two".