381244608 has 42 divisors (see below), whose sum is σ = 1092770484. Its totient is φ = 127081344.

The previous prime is 381244547. The next prime is 381244621. The reversal of 381244608 is 806442183.

381244608 is a `hidden beast` number, since 3 + 8 + 1 + 2 + 44 + 608 = 666.

It is a super-2 number, since 2×381244608² = 290694902258147328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330366 + ... + 331517.

Almost surely, 2^381244608 is an apocalyptic number.

It is an amenable number.

381244608 is an abundant number, since it is smaller than the sum of its proper divisors (711525876).

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

381244608 is a wasteful number, since it uses less digits than its factorization.

381244608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661901 (or 661888 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 381244608 is about 19525.4861143071. The cubic root of 381244608 is about 725.1055624332.

The spelling of 381244608 in words is "three hundred eighty-one million, two hundred forty-four thousand, six hundred eight".