385803442 has 4 divisors (see below), whose sum is σ = 578705166. Its totient is φ = 192901720.

The previous prime is 385803437. The next prime is 385803461. The reversal of 385803442 is 244308583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244308583 = 853 ⋅286411.

It can be written as a sum of positive squares in only one way, i.e., 217297081 + 168506361 = 14741^2 + 12981^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96450859 + ... + 96450862.

Almost surely, 2^385803442 is an apocalyptic number.

385803442 is a deficient number, since it is larger than the sum of its proper divisors (192901724).

385803442 is a wasteful number, since it uses less digits than its factorization.

385803442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192901723.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 385803442 is about 19641.8797980234. The cubic root of 385803442 is about 727.9843325232.

The spelling of 385803442 in words is "three hundred eighty-five million, eight hundred three thousand, four hundred forty-two".