381417249 has 4 divisors (see below), whose sum is σ = 508556336. Its totient is φ = 254278164.

The previous prime is 381417233. The next prime is 381417271. The reversal of 381417249 is 942714183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942714183 = 3 ⋅314238061.

It is not a de Polignac number, because 381417249 - 2⁴ = 381417233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381417209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63569539 + ... + 63569544.

It is an arithmetic number, because the mean of its divisors is an integer number (127139084).

Almost surely, 2^381417249 is an apocalyptic number.

It is an amenable number.

381417249 is a deficient number, since it is larger than the sum of its proper divisors (127139087).

381417249 is a wasteful number, since it uses less digits than its factorization.

381417249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127139086.

The product of its digits is 48384, while the sum is 39.

The square root of 381417249 is about 19529.9065281941. The cubic root of 381417249 is about 725.2149970375.

The spelling of 381417249 in words is "three hundred eighty-one million, four hundred seventeen thousand, two hundred forty-nine".