400071507441 has 8 divisors (see below), whose sum is σ = 556621227840. Its totient is φ = 255118062672.

The previous prime is 400071507401. The next prime is 400071507481. The reversal of 400071507441 is 144705170004.

It is an interprime number because it is at equal distance from previous prime (400071507401) and next prime (400071507481).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400071507441 - 2¹³ = 400071499249 is a prime.

It is a super-2 number, since 2×400071507441² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400071507401) 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 7 ways as a sum of consecutive naturals, for example, 2899068826 + ... + 2899068963.

It is an arithmetic number, because the mean of its divisors is an integer number (69577653480).

Almost surely, 2^400071507441 is an apocalyptic number.

It is an amenable number.

400071507441 is a deficient number, since it is larger than the sum of its proper divisors (156549720399).

400071507441 is a wasteful number, since it uses less digits than its factorization.

400071507441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798137815.

The product of its (nonzero) digits is 15680, while the sum is 33.

Adding to 400071507441 its reverse (144705170004), we get a palindrome (544776677445).

The spelling of 400071507441 in words is "four hundred billion, seventy-one million, five hundred seven thousand, four hundred forty-one".