236220641 has 4 divisors (see below), whose sum is σ = 238023984. Its totient is φ = 234417300.

The previous prime is 236220623. The next prime is 236220643. The reversal of 236220641 is 146022632.

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 236220641 - 2²⁶ = 169111777 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 236220641.

It is not an unprimeable number, because it can be changed into a prime (236220643) 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, 901475 + ... + 901736.

It is an arithmetic number, because the mean of its divisors is an integer number (59505996).

Almost surely, 2^236220641 is an apocalyptic number.

It is an amenable number.

236220641 is a deficient number, since it is larger than the sum of its proper divisors (1803343).

236220641 is a wasteful number, since it uses less digits than its factorization.

236220641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803342.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 236220641 is about 15369.4710709250. The cubic root of 236220641 is about 618.1671861189.

The spelling of 236220641 in words is "two hundred thirty-six million, two hundred twenty thousand, six hundred forty-one".