43622738 has 16 divisors (see below), whose sum is σ = 66394944. Its totient is φ = 21493680.

The previous prime is 43622737. The next prime is 43622753. The reversal of 43622738 is 83722634.

It is a junction number, because it is equal to n+sod(n) for n = 43622698 and 43622707.

It is not an unprimeable number, because it can be changed into a prime (43622737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43256 + ... + 44252.

It is an arithmetic number, because the mean of its divisors is an integer number (4149684).

Almost surely, 2^43622738 is an apocalyptic number.

43622738 is a deficient number, since it is larger than the sum of its proper divisors (22772206).

43622738 is a wasteful number, since it uses less digits than its factorization.

43622738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its digits is 48384, while the sum is 35.

The square root of 43622738 is about 6604.7511686664. The cubic root of 43622738 is about 352.0229463777.

The spelling of 43622738 in words is "forty-three million, six hundred twenty-two thousand, seven hundred thirty-eight".