457308381 has 8 divisors (see below), whose sum is σ = 645611904. Its totient is φ = 286938560.

The previous prime is 457308367. The next prime is 457308391. The reversal of 457308381 is 183803754.

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 457308381 - 2⁶ = 457308317 is a prime.

It is a super-2 number, since 2×457308381² = 418261910665682322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457308391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4483365 + ... + 4483466.

It is an arithmetic number, because the mean of its divisors is an integer number (80701488).

Almost surely, 2^457308381 is an apocalyptic number.

It is an amenable number.

457308381 is a deficient number, since it is larger than the sum of its proper divisors (188303523).

457308381 is a wasteful number, since it uses less digits than its factorization.

457308381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966851.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 457308381 is about 21384.7698374334. The cubic root of 457308381 is about 770.4356791149.

The spelling of 457308381 in words is "four hundred fifty-seven million, three hundred eight thousand, three hundred eighty-one".