381782536 has 16 divisors (see below), whose sum is σ = 716965200. Its totient is φ = 190591824.

The previous prime is 381782519. The next prime is 381782563. The reversal of 381782536 is 635287183.

It is a super-5 number, since 5×381782536⁵ (a number of 44 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 381782492 and 381782501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31966 + ... + 42253.

It is an arithmetic number, because the mean of its divisors is an integer number (44810325).

Almost surely, 2^381782536 is an apocalyptic number.

It is an amenable number.

381782536 is a deficient number, since it is larger than the sum of its proper divisors (335182664).

381782536 is a wasteful number, since it uses less digits than its factorization.

381782536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74868 (or 74864 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 381782536 is about 19539.2562806264. The cubic root of 381782536 is about 725.4464383150.

The spelling of 381782536 in words is "three hundred eighty-one million, seven hundred eighty-two thousand, five hundred thirty-six".