383243740 has 24 divisors (see below), whose sum is σ = 877977072. Its totient is φ = 139361280.

The previous prime is 383243723. The next prime is 383243747. The reversal of 383243740 is 47342383.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 383243696 and 383243705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383243747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870789 + ... + 871228.

It is an arithmetic number, because the mean of its divisors is an integer number (36582378).

Almost surely, 2^383243740 is an apocalyptic number.

It is an amenable number.

383243740 is an abundant number, since it is smaller than the sum of its proper divisors (494733332).

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

383243740 is a wasteful number, since it uses less digits than its factorization.

383243740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742037 (or 1742035 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 383243740 is about 19576.6120664430. The cubic root of 383243740 is about 726.3707653457.

The spelling of 383243740 in words is "three hundred eighty-three million, two hundred forty-three thousand, seven hundred forty".