40146222 has 8 divisors (see below), whose sum is σ = 80292456. Its totient is φ = 13382072.

The previous prime is 40146217. The next prime is 40146229. The reversal of 40146222 is 22264104.

It is a sphenic number, since it is the product of 3 distinct primes.

40146222 is an admirable number.

It is a super-2 number, since 2×40146222² = 3223438281746568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40146229) 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, 3345513 + ... + 3345524.

It is an arithmetic number, because the mean of its divisors is an integer number (10036557).

Almost surely, 2^40146222 is an apocalyptic number.

40146222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40146222 is a wasteful number, since it uses less digits than its factorization.

40146222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691042.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40146222 is about 6336.1046392875. The cubic root of 40146222 is about 342.4114094136.

The spelling of 40146222 in words is "forty million, one hundred forty-six thousand, two hundred twenty-two".