382689978 has 32 divisors (see below), whose sum is σ = 861898752. Its totient is φ = 112225200.

The previous prime is 382689973. The next prime is 382690037. The reversal of 382689978 is 879986283.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (382689971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91476 + ... + 95567.

It is an arithmetic number, because the mean of its divisors is an integer number (26934336).

Almost surely, 2^382689978 is an apocalyptic number.

382689978 is an abundant number, since it is smaller than the sum of its proper divisors (479208774).

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

382689978 is a wasteful number, since it uses less digits than its factorization.

382689978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187090.

The product of its digits is 10450944, while the sum is 60.

The square root of 382689978 is about 19562.4634951736. The cubic root of 382689978 is about 726.0207440437.

The spelling of 382689978 in words is "three hundred eighty-two million, six hundred eighty-nine thousand, nine hundred seventy-eight".