42402240401 has 4 divisors (see below), whose sum is σ = 42404945472. Its totient is φ = 42399535332.

The previous prime is 42402240379. The next prime is 42402240421. The reversal of 42402240401 is 10404220424.

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 42402240401 - 2⁶ = 42402240337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42402240421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328885 + ... + 1360418.

It is an arithmetic number, because the mean of its divisors is an integer number (10601236368).

Almost surely, 2^42402240401 is an apocalyptic number.

It is an amenable number.

42402240401 is a deficient number, since it is larger than the sum of its proper divisors (2705071).

42402240401 is a wasteful number, since it uses less digits than its factorization.

42402240401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705070.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 42402240401 its reverse (10404220424), we get a palindrome (52806460825).

The spelling of 42402240401 in words is "forty-two billion, four hundred two million, two hundred forty thousand, four hundred one".