39216330 has 96 divisors (see below), whose sum is σ = 106389504. Its totient is φ = 10015488.

The previous prime is 39216329. The next prime is 39216349. The reversal of 39216330 is 3361293.

39216330 is a `hidden beast` number, since 3 + 9 + 21 + 633 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 39216294 and 39216303.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308727 + ... + 308853.

It is an arithmetic number, because the mean of its divisors is an integer number (1108224).

Almost surely, 2^39216330 is an apocalyptic number.

39216330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39216330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53194752).

39216330 is an abundant number, since it is smaller than the sum of its proper divisors (67173174).

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

39216330 is a wasteful number, since it uses less digits than its factorization.

39216330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 39216330 is about 6262.2943079993. The cubic root of 39216330 is about 339.7470148058.

The spelling of 39216330 in words is "thirty-nine million, two hundred sixteen thousand, three hundred thirty".