381626763 has 16 divisors (see below), whose sum is σ = 595051776. Its totient is φ = 213000480.

The previous prime is 381626759. The next prime is 381626831. The reversal of 381626763 is 367626183.

It is not a de Polignac number, because 381626763 - 2² = 381626759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381622763) 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 15 ways as a sum of consecutive naturals, for example, 210408 + ... + 212213.

It is an arithmetic number, because the mean of its divisors is an integer number (37190736).

Almost surely, 2^381626763 is an apocalyptic number.

381626763 is a deficient number, since it is larger than the sum of its proper divisors (213425013).

381626763 is a wasteful number, since it uses less digits than its factorization.

381626763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422674.

The product of its digits is 217728, while the sum is 42.

The square root of 381626763 is about 19535.2697191516. The cubic root of 381626763 is about 725.3477605512.

The spelling of 381626763 in words is "three hundred eighty-one million, six hundred twenty-six thousand, seven hundred sixty-three".