385681235 has 4 divisors (see below), whose sum is σ = 462817488. Its totient is φ = 308544984.

The previous prime is 385681213. The next prime is 385681243. The reversal of 385681235 is 532186583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532186583 = 131 ⋅4062493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385681235 is a prime.

It is a super-2 number, since 2×385681235² = 297500030062250450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385681192 and 385681201.

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 in 3 ways as a sum of consecutive naturals, for example, 38568119 + ... + 38568128.

It is an arithmetic number, because the mean of its divisors is an integer number (115704372).

Almost surely, 2^385681235 is an apocalyptic number.

385681235 is a deficient number, since it is larger than the sum of its proper divisors (77136253).

385681235 is an equidigital number, since it uses as much as digits as its factorization.

385681235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77136252.

The product of its digits is 172800, while the sum is 41.

The square root of 385681235 is about 19638.7686732137. The cubic root of 385681235 is about 727.9074590286.

The spelling of 385681235 in words is "three hundred eighty-five million, six hundred eighty-one thousand, two hundred thirty-five".