39930216 has 64 divisors (see below), whose sum is σ = 104457600. Its totient is φ = 12703488.

The previous prime is 39930211. The next prime is 39930217. The reversal of 39930216 is 61203993.

It is not an unprimeable number, because it can be changed into a prime (39930211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71410 + ... + 71966.

It is an arithmetic number, because the mean of its divisors is an integer number (1632150).

Almost surely, 2^39930216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39930216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52228800).

39930216 is an abundant number, since it is smaller than the sum of its proper divisors (64527384).

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

39930216 is a wasteful number, since it uses less digits than its factorization.

39930216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 39930216 is about 6319.0360024295. The cubic root of 39930216 is about 341.7961919644.

The spelling of 39930216 in words is "thirty-nine million, nine hundred thirty thousand, two hundred sixteen".