381288017 has 8 divisors (see below), whose sum is σ = 424801152. Its totient is φ = 339250000.

The previous prime is 381288013. The next prime is 381288073. The reversal of 381288017 is 710882183.

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 381288017 - 2² = 381288013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381288013) 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, 368234 + ... + 369267.

It is an arithmetic number, because the mean of its divisors is an integer number (53100144).

Almost surely, 2^381288017 is an apocalyptic number.

It is an amenable number.

381288017 is a deficient number, since it is larger than the sum of its proper divisors (43513135).

381288017 is a wasteful number, since it uses less digits than its factorization.

381288017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737559.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 381288017 is about 19526.5976811118. The cubic root of 381288017 is about 725.1330818719.

The spelling of 381288017 in words is "three hundred eighty-one million, two hundred eighty-eight thousand, seventeen".