385949582 has 4 divisors (see below), whose sum is σ = 578924376. Its totient is φ = 192974790.

The previous prime is 385949581. The next prime is 385949593. The reversal of 385949582 is 285949583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 285949583 = 509 ⋅561787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385949581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96487394 + ... + 96487397.

It is an arithmetic number, because the mean of its divisors is an integer number (144731094).

Almost surely, 2^385949582 is an apocalyptic number.

385949582 is a deficient number, since it is larger than the sum of its proper divisors (192974794).

385949582 is a wasteful number, since it uses less digits than its factorization.

385949582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192974793.

The product of its digits is 3110400, while the sum is 53.

The square root of 385949582 is about 19645.5995581708. The cubic root of 385949582 is about 728.0762396004.

Subtracting from 385949582 its reverse (285949583), we obtain a palindrome (99999999).

The spelling of 385949582 in words is "three hundred eighty-five million, nine hundred forty-nine thousand, five hundred eighty-two".