243290630026 has 8 divisors (see below), whose sum is σ = 364938055524. Its totient is φ = 121644611520.

The previous prime is 243290629999. The next prime is 243290630101. The reversal of 243290630026 is 620036092342.

It is a Cunningham number, because it is equal to 493245²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 243290630025 + 1 = 493245^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413586 + ... + 810946.

Almost surely, 2^243290630026 is an apocalyptic number.

243290630026 is a deficient number, since it is larger than the sum of its proper divisors (121647425498).

243290630026 is a wasteful number, since it uses less digits than its factorization.

243290630026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703496.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 243290630026 in words is "two hundred forty-three billion, two hundred ninety million, six hundred thirty thousand, twenty-six".