236316421 has 8 divisors (see below), whose sum is σ = 269008704. Its totient is φ = 205492320.

The previous prime is 236316401. The next prime is 236316481. The reversal of 236316421 is 124613632.

236316421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 236316421 - 2⁷ = 236316293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 236316421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236316401) 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, 466776 + ... + 467281.

It is an arithmetic number, because the mean of its divisors is an integer number (33626088).

Almost surely, 2^236316421 is an apocalyptic number.

It is an amenable number.

236316421 is a deficient number, since it is larger than the sum of its proper divisors (32692283).

236316421 is a wasteful number, since it uses less digits than its factorization.

236316421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934091.

The product of its digits is 5184, while the sum is 28.

The square root of 236316421 is about 15372.5866723854. The cubic root of 236316421 is about 618.2507239112.

The spelling of 236316421 in words is "two hundred thirty-six million, three hundred sixteen thousand, four hundred twenty-one".