40442042401 has 16 divisors (see below), whose sum is σ = 42165612288. Its totient is φ = 38752862400.

The previous prime is 40442042371. The next prime is 40442042437. The reversal of 40442042401 is 10424024404.

It is a cyclic number.

It is not a de Polignac number, because 40442042401 - 2⁵ = 40442042369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40442042461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2574511 + ... + 2590171.

It is an arithmetic number, because the mean of its divisors is an integer number (2635350768).

Almost surely, 2^40442042401 is an apocalyptic number.

It is an amenable number.

40442042401 is a deficient number, since it is larger than the sum of its proper divisors (1723569887).

40442042401 is a wasteful number, since it uses less digits than its factorization.

40442042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 40442042401 its reverse (10424024404), we get a palindrome (50866066805).

The spelling of 40442042401 in words is "forty billion, four hundred forty-two million, forty-two thousand, four hundred one".