241720445 has 8 divisors (see below), whose sum is σ = 297904344. Its totient is φ = 188149824.

The previous prime is 241720421. The next prime is 241720469. The reversal of 241720445 is 544027142.

It is an interprime number because it is at equal distance from previous prime (241720421) and next prime (241720469).

It can be written as a sum of positive squares in 4 ways, for example, as 23921881 + 217798564 = 4891^2 + 14758^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241720445 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653114 + ... + 653483.

It is an arithmetic number, because the mean of its divisors is an integer number (37238043).

Almost surely, 2^241720445 is an apocalyptic number.

It is an amenable number.

241720445 is a deficient number, since it is larger than the sum of its proper divisors (56183899).

241720445 is a wasteful number, since it uses less digits than its factorization.

241720445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306639.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 241720445 is about 15547.3613516892. The cubic root of 241720445 is about 622.9279176849.

Adding to 241720445 its reverse (544027142), we get a palindrome (785747587).

The spelling of 241720445 in words is "two hundred forty-one million, seven hundred twenty thousand, four hundred forty-five".