381744363 has 64 divisors (see below), whose sum is σ = 713244672. Its totient is φ = 175063680.

The previous prime is 381744361. The next prime is 381744379. The reversal of 381744363 is 363447183.

It is not a de Polignac number, because 381744363 - 2¹ = 381744361 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (381744361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66306 + ... + 71832.

It is an arithmetic number, because the mean of its divisors is an integer number (11144448).

Almost surely, 2^381744363 is an apocalyptic number.

381744363 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

381744363 is a deficient number, since it is larger than the sum of its proper divisors (331500309).

381744363 is a wasteful number, since it uses less digits than its factorization.

381744363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584.

The product of its digits is 145152, while the sum is 39.

The square root of 381744363 is about 19538.2794278309. The cubic root of 381744363 is about 725.4222592887.

The spelling of 381744363 in words is "three hundred eighty-one million, seven hundred forty-four thousand, three hundred sixty-three".