40221146 has 16 divisors (see below), whose sum is σ = 70814976. Its totient is φ = 16771536.

The previous prime is 40221131. The next prime is 40221161. The reversal of 40221146 is 64112204.

It is an interprime number because it is at equal distance from previous prime (40221131) and next prime (40221161).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38306 + ... + 39341.

It is an arithmetic number, because the mean of its divisors is an integer number (4425936).

Almost surely, 2^40221146 is an apocalyptic number.

40221146 is a deficient number, since it is larger than the sum of its proper divisors (30593830).

40221146 is a wasteful number, since it uses less digits than its factorization.

40221146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77693.

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

The square root of 40221146 is about 6342.0143487696. The cubic root of 40221146 is about 342.6242886337.

The spelling of 40221146 in words is "forty million, two hundred twenty-one thousand, one hundred forty-six".