40080216 has 64 divisors (see below), whose sum is σ = 110119680. Its totient is φ = 12055680.

The previous prime is 40080211. The next prime is 40080217. The reversal of 40080216 is 61208004.

It is a junction number, because it is equal to n+sod(n) for n = 40080192 and 40080201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40080211) 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, 40965 + ... + 41931.

It is an arithmetic number, because the mean of its divisors is an integer number (1720620).

Almost surely, 2^40080216 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 40080216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55059840).

40080216 is an abundant number, since it is smaller than the sum of its proper divisors (70039464).

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

40080216 is a wasteful number, since it uses less digits than its factorization.

40080216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 40080216 is about 6330.8937757634. The cubic root of 40080216 is about 342.2236490698.

The spelling of 40080216 in words is "forty million, eighty thousand, two hundred sixteen".