43400054 has 16 divisors (see below), whose sum is σ = 66510528. Its totient is φ = 21234312.

The previous prime is 43400051. The next prime is 43400087. The reversal of 43400054 is 45000434.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43399999 and 43400035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43400051) 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, 20849 + ... + 22835.

It is an arithmetic number, because the mean of its divisors is an integer number (4156908).

Almost surely, 2^43400054 is an apocalyptic number.

43400054 is a deficient number, since it is larger than the sum of its proper divisors (23110474).

43400054 is a wasteful number, since it uses less digits than its factorization.

43400054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 43400054 is about 6587.8717352420. The cubic root of 43400054 is about 351.4229256212.

Adding to 43400054 its reverse (45000434), we get a palindrome (88400488).

The spelling of 43400054 in words is "forty-three million, four hundred thousand, fifty-four".