40230641 has 4 divisors (see below), whose sum is σ = 43887984. Its totient is φ = 36573300.

The previous prime is 40230629. The next prime is 40230643. The reversal of 40230641 is 14603204.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 40230641 - 2¹⁰ = 40229617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40230643) 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, 1828655 + ... + 1828676.

It is an arithmetic number, because the mean of its divisors is an integer number (10971996).

Almost surely, 2^40230641 is an apocalyptic number.

It is an amenable number.

40230641 is a deficient number, since it is larger than the sum of its proper divisors (3657343).

40230641 is a wasteful number, since it uses less digits than its factorization.

40230641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657342.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40230641 is about 6342.7628837913. The cubic root of 40230641 is about 342.6512476008.

Adding to 40230641 its reverse (14603204), we get a palindrome (54833845).

The spelling of 40230641 in words is "forty million, two hundred thirty thousand, six hundred forty-one".