40240216 has 8 divisors (see below), whose sum is σ = 75450420. Its totient is φ = 20120104.

The previous prime is 40240181. The next prime is 40240223. The reversal of 40240216 is 61204204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40240193 and 40240202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515006 + ... + 2515021.

Almost surely, 2^40240216 is an apocalyptic number.

It is an amenable number.

40240216 is a deficient number, since it is larger than the sum of its proper divisors (35210204).

40240216 is a wasteful number, since it uses less digits than its factorization.

40240216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030033 (or 5030029 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40240216 is about 6343.5176361385. The cubic root of 40240216 is about 342.6784294152.

The spelling of 40240216 in words is "forty million, two hundred forty thousand, two hundred sixteen".