381226668 has 24 divisors (see below), whose sum is σ = 906313968. Its totient is φ = 124677696.

The previous prime is 381226667. The next prime is 381226669. The reversal of 381226668 is 866622183.

It is an interprime number because it is at equal distance from previous prime (381226667) and next prime (381226669).

It is not an unprimeable number, because it can be changed into a prime (381226661) 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, 299071 + ... + 300342.

It is an arithmetic number, because the mean of its divisors is an integer number (37763082).

Almost surely, 2^381226668 is an apocalyptic number.

It is an amenable number.

381226668 is an abundant number, since it is smaller than the sum of its proper divisors (525087300).

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

381226668 is a wasteful number, since it uses less digits than its factorization.

381226668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599473 (or 599471 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 381226668 is about 19525.0267093287. The cubic root of 381226668 is about 725.0941886349.

The spelling of 381226668 in words is "three hundred eighty-one million, two hundred twenty-six thousand, six hundred sixty-eight".