381263715 has 96 divisors (see below), whose sum is σ = 789699456. Its totient is φ = 166533120.

The previous prime is 381263711. The next prime is 381263719. The reversal of 381263715 is 517362183.

381263715 is a `hidden beast` number, since 3 + 8 + 1 + 2 + 637 + 15 = 666.

It is an interprime number because it is at equal distance from previous prime (381263711) and next prime (381263719).

It is not a de Polignac number, because 381263715 - 2² = 381263711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381263715.

It is not an unprimeable number, because it can be changed into a prime (381263711) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 684217 + ... + 684773.

It is an arithmetic number, because the mean of its divisors is an integer number (8226036).

Almost surely, 2^381263715 is an apocalyptic number.

381263715 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

381263715 is an abundant number, since it is smaller than the sum of its proper divisors (408435741).

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

381263715 is a wasteful number, since it uses less digits than its factorization.

381263715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 666 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 381263715 is about 19525.9753917698. The cubic root of 381263715 is about 725.1176757066.

The spelling of 381263715 in words is "three hundred eighty-one million, two hundred sixty-three thousand, seven hundred fifteen".