381623824 has 40 divisors (see below), whose sum is σ = 752491520. Its totient is φ = 187463808.

The previous prime is 381623819. The next prime is 381623831. The reversal of 381623824 is 428326183.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220627 + ... + 222349.

It is an arithmetic number, because the mean of its divisors is an integer number (18812288).

Almost surely, 2^381623824 is an apocalyptic number.

It is an amenable number.

381623824 is a deficient number, since it is larger than the sum of its proper divisors (370867696).

381623824 is a wasteful number, since it uses less digits than its factorization.

381623824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1961 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 381623824 is about 19535.1944960883. The cubic root of 381623824 is about 725.3458985202.

The spelling of 381623824 in words is "three hundred eighty-one million, six hundred twenty-three thousand, eight hundred twenty-four".