381307348 has 24 divisors (see below), whose sum is σ = 725640552. Its totient is φ = 174587904.

The previous prime is 381307343. The next prime is 381307351. The reversal of 381307348 is 843703183.

It can be written as a sum of positive squares in 4 ways, for example, as 207014544 + 174292804 = 14388^2 + 13202^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381307343) 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, 73261 + ... + 78292.

It is an arithmetic number, because the mean of its divisors is an integer number (30235023).

Almost surely, 2^381307348 is an apocalyptic number.

It is an amenable number.

381307348 is a deficient number, since it is larger than the sum of its proper divisors (344333204).

381307348 is a wasteful number, since it uses less digits than its factorization.

381307348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151611 (or 151609 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 381307348 is about 19527.0926663444. The cubic root of 381307348 is about 725.1453362221.

The spelling of 381307348 in words is "three hundred eighty-one million, three hundred seven thousand, three hundred forty-eight".