40446216 has 40 divisors (see below), whose sum is σ = 113288670. Its totient is φ = 13481856.

The previous prime is 40446191. The next prime is 40446223. The reversal of 40446216 is 61264404.

40446216 is a `hidden beast` number, since 4 + 0 + 446 + 216 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 72900 = 6354^2 + 270^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40446216.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30561 + ... + 31856.

Almost surely, 2^40446216 is an apocalyptic number.

It is an amenable number.

40446216 is an abundant number, since it is smaller than the sum of its proper divisors (72842454).

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

40446216 is a wasteful number, since it uses less digits than its factorization.

40446216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62435 (or 62422 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40446216 is about 6359.7339566998. The cubic root of 40446216 is about 343.2621873716.

The spelling of 40446216 in words is "forty million, four hundred forty-six thousand, two hundred sixteen".