43140212 has 12 divisors (see below), whose sum is σ = 75578496. Its totient is φ = 21546360.

The previous prime is 43140199. The next prime is 43140233. The reversal of 43140212 is 21204134.

It is a super-2 number, since 2×43140212² = 3722155782809888, which contains 22 as substring.

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, 1478 + ... + 9405.

It is an arithmetic number, because the mean of its divisors is an integer number (6298208).

Almost surely, 2^43140212 is an apocalyptic number.

It is an amenable number.

43140212 is a deficient number, since it is larger than the sum of its proper divisors (32438284).

43140212 is a wasteful number, since it uses less digits than its factorization.

43140212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11878 (or 11876 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 43140212 is about 6568.1208880471. The cubic root of 43140212 is about 350.7201823963.

Adding to 43140212 its reverse (21204134), we get a palindrome (64344346).

The spelling of 43140212 in words is "forty-three million, one hundred forty thousand, two hundred twelve".