43400370044 has 6 divisors (see below), whose sum is σ = 75950647584. Its totient is φ = 21700185020.

The previous prime is 43400370029. The next prime is 43400370049. The reversal of 43400370044 is 44007300434.

It is a super-2 number, since 2×43400370044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43400369989 and 43400370016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43400370049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5425046252 + ... + 5425046259.

It is an arithmetic number, because the mean of its divisors is an integer number (12658441264).

Almost surely, 2^43400370044 is an apocalyptic number.

It is an amenable number.

43400370044 is a deficient number, since it is larger than the sum of its proper divisors (32550277540).

43400370044 is a wasteful number, since it uses less digits than its factorization.

43400370044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850092515 (or 10850092513 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 29.

Adding to 43400370044 its reverse (44007300434), we get a palindrome (87407670478).

The spelling of 43400370044 in words is "forty-three billion, four hundred million, three hundred seventy thousand, forty-four".