381824698 has 4 divisors (see below), whose sum is σ = 572737050. Its totient is φ = 190912348.

The previous prime is 381824693. The next prime is 381824713. The reversal of 381824698 is 896428183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 896428183 = 7 ⋅128061169.

It can be written as a sum of positive squares in only one way, i.e., 203148009 + 178676689 = 14253^2 + 13367^2 .

It is not an unprimeable number, because it can be changed into a prime (381824693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95456173 + ... + 95456176.

Almost surely, 2^381824698 is an apocalyptic number.

381824698 is a deficient number, since it is larger than the sum of its proper divisors (190912352).

381824698 is a wasteful number, since it uses less digits than its factorization.

381824698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190912351.

The product of its digits is 663552, while the sum is 49.

The square root of 381824698 is about 19540.3351557746. The cubic root of 381824698 is about 725.4731421267.

The spelling of 381824698 in words is "three hundred eighty-one million, eight hundred twenty-four thousand, six hundred ninety-eight".