43487400444 has 48 divisors (see below), whose sum is σ = 103876268160. Its totient is φ = 14155554240.

The previous prime is 43487400427. The next prime is 43487400449. The reversal of 43487400444 is 44400478434.

It is a super-2 number, since 2×43487400444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43487400396 and 43487400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43487400449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111954 + ... + 315449.

It is an arithmetic number, because the mean of its divisors is an integer number (2164088920).

Almost surely, 2^43487400444 is an apocalyptic number.

It is an amenable number.

43487400444 is an abundant number, since it is smaller than the sum of its proper divisors (60388867716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43487400444 is a wasteful number, since it uses less digits than its factorization.

43487400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427610 (or 427608 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 42.

Adding to 43487400444 its reverse (44400478434), we get a palindrome (87887878878).

The spelling of 43487400444 in words is "forty-three billion, four hundred eighty-seven million, four hundred thousand, four hundred forty-four".