243861466 has 16 divisors (see below), whose sum is σ = 389923200. Its totient is φ = 114049728.

The previous prime is 243861437. The next prime is 243861467. The reversal of 243861466 is 664168342.

243861466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243861467) 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, 37615 + ... + 43618.

It is an arithmetic number, because the mean of its divisors is an integer number (24370200).

Almost surely, 2^243861466 is an apocalyptic number.

243861466 is a deficient number, since it is larger than the sum of its proper divisors (146061734).

243861466 is a wasteful number, since it uses less digits than its factorization.

243861466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81333.

The product of its digits is 165888, while the sum is 40.

The square root of 243861466 is about 15616.0643569371. The cubic root of 243861466 is about 624.7616934675.

It can be divided in two parts, 24386 and 1466, that added together give a palindrome (25852).

The spelling of 243861466 in words is "two hundred forty-three million, eight hundred sixty-one thousand, four hundred sixty-six".