383906897440 has 96 divisors (see below), whose sum is σ = 989639078400. Its totient is φ = 139573401600.

The previous prime is 383906897417. The next prime is 383906897447. The reversal of 383906897440 is 44798609383.

It is not an unprimeable number, because it can be changed into a prime (383906897447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9570225 + ... + 9610255.

It is an arithmetic number, because the mean of its divisors is an integer number (10308740400).

Almost surely, 2^383906897440 is an apocalyptic number.

It is an amenable number.

383906897440 is an abundant number, since it is smaller than the sum of its proper divisors (605732180960).

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

383906897440 is a wasteful number, since it uses less digits than its factorization.

383906897440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45506 (or 45498 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 383906897440 in words is "three hundred eighty-three billion, nine hundred six million, eight hundred ninety-seven thousand, four hundred forty".