381498768 has 320 divisors, whose sum is σ = 1364912640. Its totient is φ = 99532800.

The previous prime is 381498757. The next prime is 381498773. The reversal of 381498768 is 867894183.

381498768 is a `hidden beast` number, since 3 + 81 + 498 + 76 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2107638 + ... + 2107818.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^381498768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381498768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682456320).

381498768 is an abundant number, since it is smaller than the sum of its proper divisors (983413872).

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

381498768 is a wasteful number, since it uses less digits than its factorization.

381498768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 381498768 is about 19531.9934466505. The cubic root of 381498768 is about 725.2666592615.

The spelling of 381498768 in words is "three hundred eighty-one million, four hundred ninety-eight thousand, seven hundred sixty-eight".