561340401 has 8 divisors (see below), whose sum is σ = 748887840. Its totient is φ = 374009952.

The previous prime is 561340399. The next prime is 561340433. The reversal of 561340401 is 104043165.

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

It is not a de Polignac number, because 561340401 - 2¹ = 561340399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561340441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48111 + ... + 58628.

It is an arithmetic number, because the mean of its divisors is an integer number (93610980).

Almost surely, 2^561340401 is an apocalyptic number.

It is an amenable number.

561340401 is a deficient number, since it is larger than the sum of its proper divisors (187547439).

561340401 is a wasteful number, since it uses less digits than its factorization.

561340401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108495.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 561340401 is about 23692.6233456745. The cubic root of 561340401 is about 824.9141758287.

Adding to 561340401 its reverse (104043165), we get a palindrome (665383566).

The spelling of 561340401 in words is "five hundred sixty-one million, three hundred forty thousand, four hundred one".