232040021 has 8 divisors (see below), whose sum is σ = 246110400. Its totient is φ = 218016448.

The previous prime is 232039993. The next prime is 232040023. The reversal of 232040021 is 120040232.

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 232040021 - 2¹⁰ = 232038997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232039978 and 232040005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232040023) 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, 1211 + ... + 21576.

It is an arithmetic number, because the mean of its divisors is an integer number (30763800).

Almost surely, 2^232040021 is an apocalyptic number.

It is an amenable number.

232040021 is a deficient number, since it is larger than the sum of its proper divisors (14070379).

232040021 is a wasteful number, since it uses less digits than its factorization.

232040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23403.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 232040021 is about 15232.8599087630. The cubic root of 232040021 is about 614.4986956320.

Adding to 232040021 its reverse (120040232), we get a palindrome (352080253).

The spelling of 232040021 in words is "two hundred thirty-two million, forty thousand, twenty-one".