40221349 has 8 divisors (see below), whose sum is σ = 46549760. Its totient is φ = 34038576.

The previous prime is 40221343. The next prime is 40221361. The reversal of 40221349 is 94312204.

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

It is a cyclic number.

It is not a de Polignac number, because 40221349 - 2⁷ = 40221221 is a prime.

It is a super-3 number, since 3×40221349³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35814 + ... + 36919.

It is an arithmetic number, because the mean of its divisors is an integer number (5818720).

Almost surely, 2^40221349 is an apocalyptic number.

It is an amenable number.

40221349 is a deficient number, since it is larger than the sum of its proper divisors (6328411).

40221349 is an equidigital number, since it uses as much as digits as its factorization.

40221349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72819.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40221349 is about 6342.0303531282. The cubic root of 40221349 is about 342.6248650520.

The spelling of 40221349 in words is "forty million, two hundred twenty-one thousand, three hundred forty-nine".