387427872 has 48 divisors (see below), whose sum is σ = 1095232320. Its totient is φ = 119208192.

The previous prime is 387427871. The next prime is 387427913. The reversal of 387427872 is 278724783.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (387427871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153972 + ... + 156467.

It is an arithmetic number, because the mean of its divisors is an integer number (22817340).

Almost surely, 2^387427872 is an apocalyptic number.

387427872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

387427872 is an abundant number, since it is smaller than the sum of its proper divisors (707804448).

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

387427872 is a wasteful number, since it uses less digits than its factorization.

387427872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310465 (or 310457 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 48.

The square root of 387427872 is about 19683.1875467364. The cubic root of 387427872 is about 729.0046307763.

The spelling of 387427872 in words is "three hundred eighty-seven million, four hundred twenty-seven thousand, eight hundred seventy-two".