43400434 has 32 divisors (see below), whose sum is σ = 83791872. Its totient is φ = 16362000.

The previous prime is 43400429. The next prime is 43400447.

It is a happy number.

43400434 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229 + ... + 9319.

It is an arithmetic number, because the mean of its divisors is an integer number (2618496).

Almost surely, 2^43400434 is an apocalyptic number.

43400434 is a deficient number, since it is larger than the sum of its proper divisors (40391438).

43400434 is a wasteful number, since it uses less digits than its factorization.

43400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9142.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 43400434 is about 6587.9005760561. The cubic root of 43400434 is about 351.4239512752.

It can be divided in two parts, 43400 and 434, that multiplied together give a square (18835600 = 4340²).

The spelling of 43400434 in words is "forty-three million, four hundred thousand, four hundred thirty-four".