381433642 has 8 divisors (see below), whose sum is σ = 572324832. Its totient is φ = 190658700.

The previous prime is 381433639. The next prime is 381433649. The reversal of 381433642 is 246334183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 381433598 and 381433607.

It is not an unprimeable number, because it can be changed into a prime (381433649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20334 + ... + 34297.

It is an arithmetic number, because the mean of its divisors is an integer number (71540604).

Almost surely, 2^381433642 is an apocalyptic number.

381433642 is a deficient number, since it is larger than the sum of its proper divisors (190891190).

381433642 is a wasteful number, since it uses less digits than its factorization.

381433642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58124.

The product of its digits is 41472, while the sum is 34.

The square root of 381433642 is about 19530.3262133534. The cubic root of 381433642 is about 725.2253866035.

The spelling of 381433642 in words is "three hundred eighty-one million, four hundred thirty-three thousand, six hundred forty-two".