242000454454421 has 16 divisors (see below), whose sum is σ = 269617970574960. Its totient is φ = 215669828828160.

The previous prime is 242000454454417. The next prime is 242000454454463. The reversal of 242000454454421 is 124454454000242.

It can be written as a sum of positive squares in 8 ways, for example, as 99214946848900 + 142785507605521 = 9960670^2 + 11949289^2 .

It is a cyclic number.

It is not a de Polignac number, because 242000454454421 - 2² = 242000454454417 is a prime.

It is a super-2 number, since 2×242000454454421² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242000454454481) 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, 11627780 + ... + 24883853.

It is an arithmetic number, because the mean of its divisors is an integer number (16851123160935).

Almost surely, 2^{242000454454421} is an apocalyptic number.

It is an amenable number.

242000454454421 is a deficient number, since it is larger than the sum of its proper divisors (27617516120539).

242000454454421 is a wasteful number, since it uses less digits than its factorization.

242000454454421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36529256.

The product of its (nonzero) digits is 819200, while the sum is 41.

The spelling of 242000454454421 in words is "two hundred forty-two trillion, four hundred fifty-four million, four hundred fifty-four thousand, four hundred twenty-one".