40142216 has 16 divisors (see below), whose sum is σ = 75556800. Its totient is φ = 19993744.

The previous prime is 40142213. The next prime is 40142251. The reversal of 40142216 is 61224104.

It is a super-2 number, since 2×40142216² = 3222795010781312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40142213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7436 + ... + 11643.

It is an arithmetic number, because the mean of its divisors is an integer number (4722300).

Almost surely, 2^40142216 is an apocalyptic number.

It is an amenable number.

40142216 is a deficient number, since it is larger than the sum of its proper divisors (35414584).

40142216 is a wasteful number, since it uses less digits than its factorization.

40142216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19348 (or 19344 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40142216 is about 6335.7885065712. The cubic root of 40142216 is about 342.4000198343.

The spelling of 40142216 in words is "forty million, one hundred forty-two thousand, two hundred sixteen".