387305856 has 96 divisors (see below), whose sum is σ = 1273755600. Its totient is φ = 110656512.

The previous prime is 387305851. The next prime is 387305869. The reversal of 387305856 is 658503783.

387305856 is a `hidden beast` number, since 38 + 7 + 30 + 585 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387305851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15951 + ... + 32078.

Almost surely, 2^387305856 is an apocalyptic number.

387305856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

387305856 is an abundant number, since it is smaller than the sum of its proper divisors (886449744).

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

387305856 is a wasteful number, since it uses less digits than its factorization.

387305856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48056 (or 48041 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 387305856 is about 19680.0878046822. The cubic root of 387305856 is about 728.9280921695.

The spelling of 387305856 in words is "three hundred eighty-seven million, three hundred five thousand, eight hundred fifty-six".