384417381 has 8 divisors (see below), whose sum is σ = 512738784. Its totient is φ = 256187120.

The previous prime is 384417373. The next prime is 384417389. The reversal of 384417381 is 183714483.

It is an interprime number because it is at equal distance from previous prime (384417373) and next prime (384417389).

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

It is a cyclic number.

It is not a de Polignac number, because 384417381 - 2³ = 384417373 is a prime.

It is a super-2 number, since 2×384417381² = 295553445629798322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384417389) 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, 12246 + ... + 30311.

It is an arithmetic number, because the mean of its divisors is an integer number (64092348).

Almost surely, 2^384417381 is an apocalyptic number.

It is an amenable number.

384417381 is a deficient number, since it is larger than the sum of its proper divisors (128321403).

384417381 is a wasteful number, since it uses less digits than its factorization.

384417381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45571.

The product of its digits is 64512, while the sum is 39.

The square root of 384417381 is about 19606.5647424530. The cubic root of 384417381 is about 727.1114860873. Note that the first 3 decimals are identical.

The spelling of 384417381 in words is "three hundred eighty-four million, four hundred seventeen thousand, three hundred eighty-one".