381234534 has 8 divisors (see below), whose sum is σ = 762469080. Its totient is φ = 127078176.

The previous prime is 381234533. The next prime is 381234583. The reversal of 381234534 is 435432183.

381234534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

381234534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 381234495 and 381234504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381234533) 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, 31769539 + ... + 31769550.

It is an arithmetic number, because the mean of its divisors is an integer number (95308635).

Almost surely, 2^381234534 is an apocalyptic number.

381234534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381234534 is a wasteful number, since it uses less digits than its factorization.

381234534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63539094.

The product of its digits is 34560, while the sum is 33.

The square root of 381234534 is about 19525.2281420730. The cubic root of 381234534 is about 725.0991756519.

The spelling of 381234534 in words is "three hundred eighty-one million, two hundred thirty-four thousand, five hundred thirty-four".