43401531441 has 4 divisors (see below), whose sum is σ = 57868708592. Its totient is φ = 28934354292.

The previous prime is 43401531419. The next prime is 43401531449. The reversal of 43401531441 is 14413510434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43401531441 - 2⁵ = 43401531409 is a prime.

It is a super-2 number, since 2×43401531441² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43401531399 and 43401531408.

It is not an unprimeable number, because it can be changed into a prime (43401531449) 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, 7233588571 + ... + 7233588576.

It is an arithmetic number, because the mean of its divisors is an integer number (14467177148).

Almost surely, 2^43401531441 is an apocalyptic number.

It is an amenable number.

43401531441 is a deficient number, since it is larger than the sum of its proper divisors (14467177151).

43401531441 is a wasteful number, since it uses less digits than its factorization.

43401531441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467177150.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 43401531441 in words is "forty-three billion, four hundred one million, five hundred thirty-one thousand, four hundred forty-one".