387430216 has 32 divisors (see below), whose sum is σ = 797918400. Its totient is φ = 175538880.

The previous prime is 387430177. The next prime is 387430223. The reversal of 387430216 is 612034783.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

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, 51915 + ... + 58906.

It is an arithmetic number, because the mean of its divisors is an integer number (24934950).

Almost surely, 2^387430216 is an apocalyptic number.

It is an amenable number.

387430216 is an abundant number, since it is smaller than the sum of its proper divisors (410488184).

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

387430216 is a wasteful number, since it uses less digits than its factorization.

387430216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110869 (or 110865 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 387430216 is about 19683.2470898478. The cubic root of 387430216 is about 729.0061009711.

Adding to 387430216 its reverse (612034783), we get a palindrome (999464999).

The spelling of 387430216 in words is "three hundred eighty-seven million, four hundred thirty thousand, two hundred sixteen".