385640602 has 4 divisors (see below), whose sum is σ = 578460906. Its totient is φ = 192820300.

The previous prime is 385640581. The next prime is 385640611. The reversal of 385640602 is 206046583.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 349652601 + 35988001 = 18699^2 + 5999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96410149 + ... + 96410152.

Almost surely, 2^385640602 is an apocalyptic number.

385640602 is a deficient number, since it is larger than the sum of its proper divisors (192820304).

385640602 is a wasteful number, since it uses less digits than its factorization.

385640602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192820303.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 385640602 is about 19637.7341360963. The cubic root of 385640602 is about 727.8818955149.

The spelling of 385640602 in words is "three hundred eighty-five million, six hundred forty thousand, six hundred two".