385500634 has 4 divisors (see below), whose sum is σ = 578250954. Its totient is φ = 192750316.

The previous prime is 385500617. The next prime is 385500659. The reversal of 385500634 is 436005583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436005583 = 13 ⋅33538891.

It can be written as a sum of positive squares in only one way, i.e., 252905409 + 132595225 = 15903^2 + 11515^2 .

It is a super-2 number, since 2×385500634² = 297221477628803912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 385500634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96375157 + ... + 96375160.

Almost surely, 2^385500634 is an apocalyptic number.

385500634 is a deficient number, since it is larger than the sum of its proper divisors (192750320).

385500634 is a wasteful number, since it uses less digits than its factorization.

385500634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192750319.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 385500634 is about 19634.1700614006. The cubic root of 385500634 is about 727.7938234422.

The spelling of 385500634 in words is "three hundred eighty-five million, five hundred thousand, six hundred thirty-four".