243404832490 has 32 divisors (see below), whose sum is σ = 456924432384. Its totient is φ = 93249861120.

The previous prime is 243404832443. The next prime is 243404832497. The reversal of 243404832490 is 94238404342.

It is not an unprimeable number, because it can be changed into a prime (243404832497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4017234 + ... + 4077373.

It is an arithmetic number, because the mean of its divisors is an integer number (14278888512).

Almost surely, 2^243404832490 is an apocalyptic number.

243404832490 is a deficient number, since it is larger than the sum of its proper divisors (213519599894).

243404832490 is a wasteful number, since it uses less digits than its factorization.

243404832490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094742.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 243404832490 in words is "two hundred forty-three billion, four hundred four million, eight hundred thirty-two thousand, four hundred ninety".