383145636440 has 32 divisors (see below), whose sum is σ = 985231637280. Its totient is φ = 131364218112.

The previous prime is 383145636407. The next prime is 383145636457. The reversal of 383145636440 is 44636541383.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 684188357 + ... + 684188916.

It is an arithmetic number, because the mean of its divisors is an integer number (30788488665).

Almost surely, 2^383145636440 is an apocalyptic number.

It is an amenable number.

383145636440 is an abundant number, since it is smaller than the sum of its proper divisors (602086000840).

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

383145636440 is a wasteful number, since it uses less digits than its factorization.

383145636440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368377291 (or 1368377287 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 383145636440 in words is "three hundred eighty-three billion, one hundred forty-five million, six hundred thirty-six thousand, four hundred forty".