381802436 has 12 divisors (see below), whose sum is σ = 668502828. Its totient is φ = 190801632.

The previous prime is 381802411. The next prime is 381802441. The reversal of 381802436 is 634208183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75342400 + 306460036 = 8680^2 + 17506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381802396 and 381802405.

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, 15911 + ... + 31886.

It is an arithmetic number, because the mean of its divisors is an integer number (55708569).

Almost surely, 2^381802436 is an apocalyptic number.

It is an amenable number.

381802436 is a deficient number, since it is larger than the sum of its proper divisors (286700392).

381802436 is a wasteful number, since it uses less digits than its factorization.

381802436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49798 (or 49796 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 381802436 is about 19539.7655052460. The cubic root of 381802436 is about 725.4590424652.

The spelling of 381802436 in words is "three hundred eighty-one million, eight hundred two thousand, four hundred thirty-six".