381626016 has 24 divisors (see below), whose sum is σ = 1001768544. Its totient is φ = 127208640.

The previous prime is 381625997. The next prime is 381626017. The reversal of 381626016 is 610626183.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (381626017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1987540 + ... + 1987731.

It is an arithmetic number, because the mean of its divisors is an integer number (41740356).

Almost surely, 2^381626016 is an apocalyptic number.

It is an amenable number.

381626016 is an abundant number, since it is smaller than the sum of its proper divisors (620142528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381626016 is a wasteful number, since it uses less digits than its factorization.

381626016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975284 (or 3975276 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 381626016 is about 19535.2505998771. The cubic root of 381626016 is about 725.3472872832.

The spelling of 381626016 in words is "three hundred eighty-one million, six hundred twenty-six thousand, sixteen".