381729733 has 8 divisors (see below), whose sum is σ = 475922880. Its totient is φ = 297451680.

The previous prime is 381729731. The next prime is 381729739. The reversal of 381729733 is 337927183.

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 381729733 - 2¹ = 381729731 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 381729733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381729731) 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, 2478688 + ... + 2478841.

It is an arithmetic number, because the mean of its divisors is an integer number (59490360).

Almost surely, 2^381729733 is an apocalyptic number.

It is an amenable number.

381729733 is a deficient number, since it is larger than the sum of its proper divisors (94193147).

381729733 is a wasteful number, since it uses less digits than its factorization.

381729733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957547.

The product of its digits is 190512, while the sum is 43.

The square root of 381729733 is about 19537.9050309904. The cubic root of 381729733 is about 725.4129921244.

The spelling of 381729733 in words is "three hundred eighty-one million, seven hundred twenty-nine thousand, seven hundred thirty-three".