387108840 has 32 divisors (see below), whose sum is σ = 1161326880. Its totient is φ = 103228992.

The previous prime is 387108817. The next prime is 387108851. The reversal of 387108840 is 48801783.

It is a super-2 number, since 2×387108840² = 299706508012291200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612834 + ... + 1613073.

It is an arithmetic number, because the mean of its divisors is an integer number (36291465).

Almost surely, 2^387108840 is an apocalyptic number.

387108840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

387108840 is an abundant number, since it is smaller than the sum of its proper divisors (774218040).

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

387108840 is a wasteful number, since it uses less digits than its factorization.

387108840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225921 (or 3225917 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 387108840 is about 19675.0817024987. The cubic root of 387108840 is about 728.8044733702.

The spelling of 387108840 in words is "three hundred eighty-seven million, one hundred eight thousand, eight hundred forty".