40401024001 has 4 divisors (see below), whose sum is σ = 43508795092. Its totient is φ = 37293252912.

The previous prime is 40401023987. The next prime is 40401024017. The reversal of 40401024001 is 10042010404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18555888400 + 21845135601 = 136220^2 + 147801^2 .

It is a cyclic number.

It is not a de Polignac number, because 40401024001 - 2⁵ = 40401023969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401024701) 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 3 ways as a sum of consecutive naturals, for example, 1553885526 + ... + 1553885551.

It is an arithmetic number, because the mean of its divisors is an integer number (10877198773).

Almost surely, 2^40401024001 is an apocalyptic number.

It is an amenable number.

40401024001 is a deficient number, since it is larger than the sum of its proper divisors (3107771091).

40401024001 is a wasteful number, since it uses less digits than its factorization.

40401024001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107771090.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 40401024001 its reverse (10042010404), we get a palindrome (50443034405).

The spelling of 40401024001 in words is "forty billion, four hundred one million, twenty-four thousand, one".