37680216 has 72 divisors (see below), whose sum is σ = 110195820. Its totient is φ = 10705632.

The previous prime is 37680199. The next prime is 37680217. The reversal of 37680216 is 61208673.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37680217) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 210415 + ... + 210593.

Almost surely, 2^37680216 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 37680216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55097910).

37680216 is an abundant number, since it is smaller than the sum of its proper divisors (72515604).

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

37680216 is a wasteful number, since it uses less digits than its factorization.

37680216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 37680216 is about 6138.4212954146. The cubic root of 37680216 is about 335.2518074108.

Adding to 37680216 its reverse (61208673), we get a palindrome (98888889).

The spelling of 37680216 in words is "thirty-seven million, six hundred eighty thousand, two hundred sixteen".