388881730446 has 16 divisors (see below), whose sum is σ = 848469230208. Its totient is φ = 117842948600.

The previous prime is 388881730421. The next prime is 388881730483. The reversal of 388881730446 is 644037188883.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 388881730446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2946073650 + ... + 2946073781.

It is an arithmetic number, because the mean of its divisors is an integer number (53029326888).

Almost surely, 2^388881730446 is an apocalyptic number.

388881730446 is an abundant number, since it is smaller than the sum of its proper divisors (459587499762).

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

388881730446 is a wasteful number, since it uses less digits than its factorization.

388881730446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892147447.

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 388881730446 in words is "three hundred eighty-eight billion, eight hundred eighty-one million, seven hundred thirty thousand, four hundred forty-six".