381322496 has 18 divisors (see below), whose sum is σ = 761155962. Its totient is φ = 190661120.

The previous prime is 381322489. The next prime is 381322499. The reversal of 381322496 is 694223183.

It can be written as a sum of positive squares in only one way, i.e., 362521600 + 18800896 = 19040^2 + 4336^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381322499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744515 + ... + 745026.

Almost surely, 2^381322496 is an apocalyptic number.

It is an amenable number.

381322496 is a deficient number, since it is larger than the sum of its proper divisors (379833466).

381322496 is an equidigital number, since it uses as much as digits as its factorization.

381322496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489557 (or 1489543 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 381322496 is about 19527.4805338528. The cubic root of 381322496 is about 725.1549385863.

The spelling of 381322496 in words is "three hundred eighty-one million, three hundred twenty-two thousand, four hundred ninety-six".