387396216 has 64 divisors (see below), whose sum is σ = 1105207200. Its totient is φ = 125639424.

The previous prime is 387396203. The next prime is 387396227. The reversal of 387396216 is 612693783.

It is a super-2 number, since 2×387396216² = 300151656342237312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16245 + ... + 32228.

Almost surely, 2^387396216 is an apocalyptic number.

387396216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

387396216 is an abundant number, since it is smaller than the sum of its proper divisors (717810984).

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

387396216 is a wasteful number, since it uses less digits than its factorization.

387396216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48525 (or 48515 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 387396216 is about 19682.3833922622. The cubic root of 387396216 is about 728.9847750381.

The spelling of 387396216 in words is "three hundred eighty-seven million, three hundred ninety-six thousand, two hundred sixteen".