43440320411 has 8 divisors (see below), whose sum is σ = 44335381104. Its totient is φ = 42548053600.

The previous prime is 43440320377. The next prime is 43440320479. The reversal of 43440320411 is 11402304434.

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

It is a cyclic number.

It is not a de Polignac number, because 43440320411 - 2²⁶ = 43373211547 is a prime.

It is a super-2 number, since 2×43440320411² (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 (43440320111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667040 + ... + 729261.

It is an arithmetic number, because the mean of its divisors is an integer number (5541922638).

Almost surely, 2^43440320411 is an apocalyptic number.

43440320411 is a deficient number, since it is larger than the sum of its proper divisors (895060693).

43440320411 is a wasteful number, since it uses less digits than its factorization.

43440320411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396941.

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

Adding to 43440320411 its reverse (11402304434), we get a palindrome (54842624845).

The spelling of 43440320411 in words is "forty-three billion, four hundred forty million, three hundred twenty thousand, four hundred eleven".