40143342401 has 4 divisors (see below), whose sum is σ = 40146791892. Its totient is φ = 40139892912.

The previous prime is 40143342383. The next prime is 40143342409. The reversal of 40143342401 is 10424334104.

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 21722338225 + 18421004176 = 147385^2 + 135724^2 .

It is a cyclic number.

It is not a de Polignac number, because 40143342401 - 2¹⁴ = 40143326017 is a prime.

It is a super-2 number, since 2×40143342401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40143342409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707230 + ... + 1730583.

It is an arithmetic number, because the mean of its divisors is an integer number (10036697973).

Almost surely, 2^40143342401 is an apocalyptic number.

It is an amenable number.

40143342401 is a deficient number, since it is larger than the sum of its proper divisors (3449491).

40143342401 is a wasteful number, since it uses less digits than its factorization.

40143342401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449490.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 40143342401 its reverse (10424334104), we get a palindrome (50567676505).

The spelling of 40143342401 in words is "forty billion, one hundred forty-three million, three hundred forty-two thousand, four hundred one".