388329380 has 12 divisors (see below), whose sum is σ = 815491740. Its totient is φ = 155331744.

The previous prime is 388329373. The next prime is 388329427. The reversal of 388329380 is 83923883.

It can be written as a sum of positive squares in 2 ways, for example, as 105349696 + 282979684 = 10264^2 + 16822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9708215 + ... + 9708254.

It is an arithmetic number, because the mean of its divisors is an integer number (67957645).

Almost surely, 2^388329380 is an apocalyptic number.

It is an amenable number.

388329380 is an abundant number, since it is smaller than the sum of its proper divisors (427162360).

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

388329380 is a wasteful number, since it uses less digits than its factorization.

388329380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19416478 (or 19416476 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 388329380 is about 19706.0746979199. The cubic root of 388329380 is about 729.5696343653.

The spelling of 388329380 in words is "three hundred eighty-eight million, three hundred twenty-nine thousand, three hundred eighty".