402201724441 has 4 divisors (see below), whose sum is σ = 438765517584. Its totient is φ = 365637931300.

The previous prime is 402201724427. The next prime is 402201724501. The reversal of 402201724441 is 144427102204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402201724441 - 2¹³ = 402201716249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402261724441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18281896555 + ... + 18281896576.

It is an arithmetic number, because the mean of its divisors is an integer number (109691379396).

Almost surely, 2^402201724441 is an apocalyptic number.

It is an amenable number.

402201724441 is a deficient number, since it is larger than the sum of its proper divisors (36563793143).

402201724441 is a wasteful number, since it uses less digits than its factorization.

402201724441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36563793142.

The product of its (nonzero) digits is 14336, while the sum is 31.

Adding to 402201724441 its reverse (144427102204), we get a palindrome (546628826645).

The spelling of 402201724441 in words is "four hundred two billion, two hundred one million, seven hundred twenty-four thousand, four hundred forty-one".