382867490 has 32 divisors (see below), whose sum is σ = 711822384. Its totient is φ = 148158720.

The previous prime is 382867481. The next prime is 382867519. The reversal of 382867490 is 94768283.

It is a Cunningham number, because it is equal to 19567²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 137851081 + 245016409 = 11741^2 + 15653^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64112 + ... + 69828.

Almost surely, 2^382867490 is an apocalyptic number.

382867490 is a deficient number, since it is larger than the sum of its proper divisors (328954894).

382867490 is a wasteful number, since it uses less digits than its factorization.

382867490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 382867490 is about 19567.0000255532. Note that the first 4 decimals coincide. The cubic root of 382867490 is about 726.1329823917.

The spelling of 382867490 in words is "three hundred eighty-two million, eight hundred sixty-seven thousand, four hundred ninety".