381300534 has 28 divisors (see below), whose sum is σ = 857537196. Its totient is φ = 127099692.

The previous prime is 381300511. The next prime is 381300547. The reversal of 381300534 is 435003183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 381300498 and 381300507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 129304 + ... + 132219.

Almost surely, 2^381300534 is an apocalyptic number.

381300534 is an abundant number, since it is smaller than the sum of its proper divisors (476236662).

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

381300534 is an equidigital number, since it uses as much as digits as its factorization.

381300534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261543 (or 261528 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 381300534 is about 19526.9181900268. The cubic root of 381300534 is about 725.1410167234.

The spelling of 381300534 in words is "three hundred eighty-one million, three hundred thousand, five hundred thirty-four".