385993274 has 4 divisors (see below), whose sum is σ = 578989914. Its totient is φ = 192996636.

The previous prime is 385993271. The next prime is 385993301. The reversal of 385993274 is 472399583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472399583 = 149 ⋅3170467.

It can be written as a sum of positive squares in only one way, i.e., 248283049 + 137710225 = 15757^2 + 11735^2 .

It is not an unprimeable number, because it can be changed into a prime (385993271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96498317 + ... + 96498320.

Almost surely, 2^385993274 is an apocalyptic number.

385993274 is a deficient number, since it is larger than the sum of its proper divisors (192996640).

385993274 is a wasteful number, since it uses less digits than its factorization.

385993274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192996639.

The product of its digits is 1632960, while the sum is 50.

The square root of 385993274 is about 19646.7115314497. The cubic root of 385993274 is about 728.1037128838.

The spelling of 385993274 in words is "three hundred eighty-five million, nine hundred ninety-three thousand, two hundred seventy-four".