40643301 has 4 divisors (see below), whose sum is σ = 54191072. Its totient is φ = 27095532.

The previous prime is 40643269. The next prime is 40643321. The reversal of 40643301 is 10334604.

40643301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40643301 - 2⁵ = 40643269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40643321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6773881 + ... + 6773886.

It is an arithmetic number, because the mean of its divisors is an integer number (13547768).

Almost surely, 2^40643301 is an apocalyptic number.

It is an amenable number.

40643301 is a deficient number, since it is larger than the sum of its proper divisors (13547771).

40643301 is a wasteful number, since it uses less digits than its factorization.

40643301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547770.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40643301 is about 6375.2098788981. The cubic root of 40643301 is about 343.8188298094.

Adding to 40643301 its reverse (10334604), we get a palindrome (50977905).

The spelling of 40643301 in words is "forty million, six hundred forty-three thousand, three hundred one".