381262839 has 8 divisors (see below), whose sum is σ = 511762800. Its totient is φ = 252469056.

The previous prime is 381262823. The next prime is 381262853. The reversal of 381262839 is 938262183.

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

It is not a de Polignac number, because 381262839 - 2⁴ = 381262823 is a prime.

It is a super-2 number, since 2×381262839² = 290722704804679842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381262839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381262439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426022 + ... + 426915.

It is an arithmetic number, because the mean of its divisors is an integer number (63970350).

Almost surely, 2^381262839 is an apocalyptic number.

381262839 is a deficient number, since it is larger than the sum of its proper divisors (130499961).

381262839 is a wasteful number, since it uses less digits than its factorization.

381262839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853089.

The product of its digits is 124416, while the sum is 42.

The square root of 381262839 is about 19525.9529600990. The cubic root of 381262839 is about 725.1171203574.

The spelling of 381262839 in words is "three hundred eighty-one million, two hundred sixty-two thousand, eight hundred thirty-nine".