42044020401 has 32 divisors (see below), whose sum is σ = 62119895040. Its totient is φ = 25174727424.

The previous prime is 42044020399. The next prime is 42044020409. The reversal of 42044020401 is 10402044024.

It is not a de Polignac number, because 42044020401 - 2¹ = 42044020399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42044020409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6240 + ... + 290046.

It is an arithmetic number, because the mean of its divisors is an integer number (1941246720).

Almost surely, 2^42044020401 is an apocalyptic number.

It is an amenable number.

42044020401 is a deficient number, since it is larger than the sum of its proper divisors (20075874639).

42044020401 is a wasteful number, since it uses less digits than its factorization.

42044020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283965.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 42044020401 its reverse (10402044024), we get a palindrome (52446064425).

The spelling of 42044020401 in words is "forty-two billion, forty-four million, twenty thousand, four hundred one".