40216736 has 96 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 16128000.

The previous prime is 40216733. The next prime is 40216741. The reversal of 40216736 is 63761204.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 40216699 and 40216708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40216733) 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, 266261 + ... + 266411.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^40216736 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 40216736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48263040).

40216736 is an abundant number, since it is smaller than the sum of its proper divisors (56309344).

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

40216736 is a wasteful number, since it uses less digits than its factorization.

40216736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40216736 is about 6341.6666579063. Note that the first 4 decimals coincide. The cubic root of 40216736 is about 342.6117659643.

The spelling of 40216736 in words is "forty million, two hundred sixteen thousand, seven hundred thirty-six".