43140772 has 6 divisors (see below), whose sum is σ = 75496358. Its totient is φ = 21570384.

The previous prime is 43140767. The next prime is 43140793. The reversal of 43140772 is 27704134.

It can be written as a sum of positive squares in only one way, i.e., 26050816 + 17089956 = 5104^2 + 4134^2 .

It is a super-2 number, since 2×43140772² = 3722252417511968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43140772.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5392593 + ... + 5392600.

Almost surely, 2^43140772 is an apocalyptic number.

It is an amenable number.

43140772 is a deficient number, since it is larger than the sum of its proper divisors (32355586).

43140772 is a wasteful number, since it uses less digits than its factorization.

43140772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10785197 (or 10785195 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 43140772 is about 6568.1635180620. The cubic root of 43140772 is about 350.7216999476.

The spelling of 43140772 in words is "forty-three million, one hundred forty thousand, seven hundred seventy-two".