387309366 has 12 divisors (see below), whose sum is σ = 839170332. Its totient is φ = 129103116.

The previous prime is 387309347. The next prime is 387309371. The reversal of 387309366 is 663903783.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10758576 + ... + 10758611.

It is an arithmetic number, because the mean of its divisors is an integer number (69930861).

Almost surely, 2^387309366 is an apocalyptic number.

387309366 is an abundant number, since it is smaller than the sum of its proper divisors (451860966).

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

387309366 is a wasteful number, since it uses less digits than its factorization.

387309366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21517195 (or 21517192 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 387309366 is about 19680.1769809115. The cubic root of 387309366 is about 728.9302941587.

The spelling of 387309366 in words is "three hundred eighty-seven million, three hundred nine thousand, three hundred sixty-six".