381008045 has 16 divisors (see below), whose sum is σ = 525026880. Its totient is φ = 262512000.

The previous prime is 381008027. The next prime is 381008053. The reversal of 381008045 is 540800183.

It is not a de Polignac number, because 381008045 - 2¹⁰ = 381007021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381007999 and 381008017.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 181256 + ... + 183345.

It is an arithmetic number, because the mean of its divisors is an integer number (32814180).

Almost surely, 2^381008045 is an apocalyptic number.

It is an amenable number.

381008045 is a deficient number, since it is larger than the sum of its proper divisors (144018835).

381008045 is a wasteful number, since it uses less digits than its factorization.

381008045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364636.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 381008045 is about 19519.4273737730. The cubic root of 381008045 is about 724.9555549449.

The spelling of 381008045 in words is "three hundred eighty-one million, eight thousand, forty-five".