381294451 has 8 divisors (see below), whose sum is σ = 414310400. Its totient is φ = 349573320.

The previous prime is 381294443. The next prime is 381294461. The reversal of 381294451 is 154492183.

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 381294451 - 2³ = 381294443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381294451.

It is not an unprimeable number, because it can be changed into a prime (381294421) 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, 323091 + ... + 324268.

It is an arithmetic number, because the mean of its divisors is an integer number (51788800).

Almost surely, 2^381294451 is an apocalyptic number.

381294451 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

381294451 is a deficient number, since it is larger than the sum of its proper divisors (33015949).

381294451 is a wasteful number, since it uses less digits than its factorization.

381294451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647409.

The product of its digits is 34560, while the sum is 37.

The square root of 381294451 is about 19526.7624300599. The cubic root of 381294451 is about 725.1371605733.

The spelling of 381294451 in words is "three hundred eighty-one million, two hundred ninety-four thousand, four hundred fifty-one".