43400012 has 6 divisors (see below), whose sum is σ = 75950028. Its totient is φ = 21700004.

The previous prime is 43399973. The next prime is 43400051. The reversal of 43400012 is 21000434.

43400012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43399973) and next prime (43400051).

It is a super-2 number, since 2×43400012² = 3767122083200288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43400012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5424998 + ... + 5425005.

It is an arithmetic number, because the mean of its divisors is an integer number (12658338).

Almost surely, 2^43400012 is an apocalyptic number.

It is an amenable number.

43400012 is a deficient number, since it is larger than the sum of its proper divisors (32550016).

43400012 is a wasteful number, since it uses less digits than its factorization.

43400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850007 (or 10850005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 43400012 is about 6587.8685475653. The cubic root of 43400012 is about 351.4228122591.

Adding to 43400012 its reverse (21000434), we get a palindrome (64400446).

The spelling of 43400012 in words is "forty-three million, four hundred thousand, twelve".