43400070 has 64 divisors (see below), whose sum is σ = 132272640. Its totient is φ = 9919584.

The previous prime is 43400051. The next prime is 43400087. The reversal of 43400070 is 7000434.

43400070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 9592 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (2066760).

Almost surely, 2^43400070 is an apocalyptic number.

43400070 is an abundant number, since it is smaller than the sum of its proper divisors (88872570).

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

43400070 is a wasteful number, since it uses less digits than its factorization.

43400070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22986 (or 22980 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 43400070 is about 6587.8729495946. The cubic root of 43400070 is about 351.4229688067.

The spelling of 43400070 in words is "forty-three million, four hundred thousand, seventy".