383780972 has 12 divisors (see below), whose sum is σ = 671759760. Its totient is φ = 191849616.

The previous prime is 383780963. The next prime is 383780989. The reversal of 383780972 is 279087383.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 22673 + ... + 35799.

It is an arithmetic number, because the mean of its divisors is an integer number (55979980).

Almost surely, 2^383780972 is an apocalyptic number.

It is an amenable number.

383780972 is a deficient number, since it is larger than the sum of its proper divisors (287978788).

383780972 is a wasteful number, since it uses less digits than its factorization.

383780972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20440 (or 20438 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 383780972 is about 19590.3285322120. The cubic root of 383780972 is about 726.7100163049.

The spelling of 383780972 in words is "three hundred eighty-three million, seven hundred eighty thousand, nine hundred seventy-two".