381084834 has 32 divisors (see below), whose sum is σ = 839893824. Its totient is φ = 114528960.

The previous prime is 381084833. The next prime is 381084839. The reversal of 381084834 is 438480183.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 381084792 and 381084801.

It is not an unprimeable number, because it can be changed into a prime (381084833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53457 + ... + 60164.

It is an arithmetic number, because the mean of its divisors is an integer number (26246682).

Almost surely, 2^381084834 is an apocalyptic number.

381084834 is an abundant number, since it is smaller than the sum of its proper divisors (458808990).

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

381084834 is a wasteful number, since it uses less digits than its factorization.

381084834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113682.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 381084834 is about 19521.3942637302. The cubic root of 381084834 is about 725.0042545926.

The spelling of 381084834 in words is "three hundred eighty-one million, eighty-four thousand, eight hundred thirty-four".