243562401 has 12 divisors (see below), whose sum is σ = 358451028. Its totient is φ = 159310944.

The previous prime is 243562391. The next prime is 243562411. The reversal of 243562401 is 104265342.

243562401 is a `hidden beast` number, since 2 + 4 + 35 + 624 + 0 + 1 = 666.

243562401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243562391) and next prime (243562411).

It can be written as a sum of positive squares in 2 ways, for example, as 188787600 + 54774801 = 13740^2 + 7401^2 .

It is not a de Polignac number, because 243562401 - 2⁶ = 243562337 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (243562411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254830 + ... + 255783.

It is an arithmetic number, because the mean of its divisors is an integer number (29870919).

Almost surely, 2^243562401 is an apocalyptic number.

It is an amenable number.

243562401 is a deficient number, since it is larger than the sum of its proper divisors (114888627).

243562401 is a wasteful number, since it uses less digits than its factorization.

243562401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510672 (or 510669 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 243562401 is about 15606.4858632557. The cubic root of 243562401 is about 624.5061921355.

The spelling of 243562401 in words is "two hundred forty-three million, five hundred sixty-two thousand, four hundred one".