385681602 has 32 divisors (see below), whose sum is σ = 797704704. Its totient is φ = 124185600.

The previous prime is 385681579. The next prime is 385681609. The reversal of 385681602 is 206186583.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (385681609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121378 + ... + 124514.

It is an arithmetic number, because the mean of its divisors is an integer number (24928272).

Almost surely, 2^385681602 is an apocalyptic number.

385681602 is an abundant number, since it is smaller than the sum of its proper divisors (412023102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385681602 is a wasteful number, since it uses less digits than its factorization.

385681602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 385681602 is about 19638.7780169745. The cubic root of 385681602 is about 727.9076899118.

It can be divided in two parts, 3856 and 81602, that added together give a palindrome (85458).

The spelling of 385681602 in words is "three hundred eighty-five million, six hundred eighty-one thousand, six hundred two".