381424337 has 4 divisors (see below), whose sum is σ = 435913536. Its totient is φ = 326935140.

The previous prime is 381424331. The next prime is 381424349. The reversal of 381424337 is 733424183.

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: 733424183 = 17 ⋅43142599.

It is not a de Polignac number, because 381424337 - 2¹⁰ = 381423313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381424297 and 381424306.

It is not an unprimeable number, because it can be changed into a prime (381424331) 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, 27244589 + ... + 27244602.

It is an arithmetic number, because the mean of its divisors is an integer number (108978384).

Almost surely, 2^381424337 is an apocalyptic number.

It is an amenable number.

381424337 is a deficient number, since it is larger than the sum of its proper divisors (54489199).

381424337 is an equidigital number, since it uses as much as digits as its factorization.

381424337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54489198.

The product of its digits is 48384, while the sum is 35.

The square root of 381424337 is about 19530.0879926333. The cubic root of 381424337 is about 725.2194893112.

The spelling of 381424337 in words is "three hundred eighty-one million, four hundred twenty-four thousand, three hundred thirty-seven".