385634 has 4 divisors (see below), whose sum is σ = 578454. Its totient is φ = 192816.

The previous prime is 385631. The next prime is 385639. The reversal of 385634 is 436583.

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., 265225 + 120409 = 515^2 + 347^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 385597 and 385606.

It is not an unprimeable number, because it can be changed into a prime (385631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96407 + ... + 96410.

2³⁸⁵⁶³⁴ is an apocalyptic number.

385634 is a deficient number, since it is larger than the sum of its proper divisors (192820).

385634 is a wasteful number, since it uses less digits than its factorization.

385634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192819.

The product of its digits is 8640, while the sum is 29.

The square root of 385634 is about 620.9943639036. The cubic root of 385634 is about 72.7877741817.

The spelling of 385634 in words is "three hundred eighty-five thousand, six hundred thirty-four".