43390196 has 12 divisors (see below), whose sum is σ = 77985348. Its totient is φ = 21108672.

The previous prime is 43390189. The next prime is 43390219. The reversal of 43390196 is 69109334.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 18748900 = 4964^2 + 4330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146441 + ... + 146736.

It is an arithmetic number, because the mean of its divisors is an integer number (6498779).

Almost surely, 2^43390196 is an apocalyptic number.

It is an amenable number.

43390196 is a deficient number, since it is larger than the sum of its proper divisors (34595152).

43390196 is a wasteful number, since it uses less digits than its factorization.

43390196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293218 (or 293216 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 43390196 is about 6587.1234996772. The cubic root of 43390196 is about 351.3963159037.

The spelling of 43390196 in words is "forty-three million, three hundred ninety thousand, one hundred ninety-six".