387330772 has 12 divisors (see below), whose sum is σ = 694361556. Its totient is φ = 188941760.

The previous prime is 387330767. The next prime is 387330803. The reversal of 387330772 is 277033783.

It can be written as a sum of positive squares in 2 ways, for example, as 31404816 + 355925956 = 5604^2 + 18866^2 .

It is a congruent number.

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, 1180723 + ... + 1181050.

It is an arithmetic number, because the mean of its divisors is an integer number (57863463).

Almost surely, 2^387330772 is an apocalyptic number.

It is an amenable number.

387330772 is a deficient number, since it is larger than the sum of its proper divisors (307030784).

387330772 is a wasteful number, since it uses less digits than its factorization.

387330772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361818 (or 2361816 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 387330772 is about 19680.7208201326. The cubic root of 387330772 is about 728.9437228678.

The spelling of 387330772 in words is "three hundred eighty-seven million, three hundred thirty thousand, seven hundred seventy-two".