43400159 has 12 divisors (see below), whose sum is σ = 47927880. Its totient is φ = 39270000.

The previous prime is 43400143. The next prime is 43400171. The reversal of 43400159 is 95100434.

It is not a de Polignac number, because 43400159 - 2⁴ = 43400143 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43400759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29657 + ... + 31085.

It is an arithmetic number, because the mean of its divisors is an integer number (3993990).

Almost surely, 2^43400159 is an apocalyptic number.

43400159 is a deficient number, since it is larger than the sum of its proper divisors (4527721).

43400159 is a wasteful number, since it uses less digits than its factorization.

43400159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 43400159 is about 6587.8797044269. The cubic root of 43400159 is about 351.4232090262.

The spelling of 43400159 in words is "forty-three million, four hundred thousand, one hundred fifty-nine".