23404402242 has 24 divisors (see below), whose sum is σ = 54610272444. Its totient is φ = 7201354464.

The previous prime is 23404402223. The next prime is 23404402247. The reversal of 23404402242 is 24220440432.

23404402242 is a `hidden beast` number, since 234 + 0 + 4 + 402 + 24 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23013193401 + 391208841 = 151701^2 + 19779^2 .

It is not an unprimeable number, because it can be changed into a prime (23404402247) 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, 50009173 + ... + 50009640.

Almost surely, 2^23404402242 is an apocalyptic number.

23404402242 is an abundant number, since it is smaller than the sum of its proper divisors (31205870202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23404402242 is a wasteful number, since it uses less digits than its factorization.

23404402242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100018834 (or 100018831 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 23404402242 its reverse (24220440432), we get a palindrome (47624842674).

The spelling of 23404402242 in words is "twenty-three billion, four hundred four million, four hundred two thousand, two hundred forty-two".