43040002 has 8 divisors (see below), whose sum is σ = 66786300. Its totient is φ = 20777904.

The previous prime is 43039979. The next prime is 43040003. The reversal of 43040002 is 20004034.

It can be written as a sum of positive squares in 2 ways, for example, as 39576681 + 3463321 = 6291^2 + 1861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (43040003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370977 + ... + 371092.

Almost surely, 2^43040002 is an apocalyptic number.

43040002 is a deficient number, since it is larger than the sum of its proper divisors (23746298).

43040002 is a wasteful number, since it uses less digits than its factorization.

43040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742100.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 43040002 is about 6560.4879391704. The cubic root of 43040002 is about 350.4484102978.

Adding to 43040002 its reverse (20004034), we get a palindrome (63044036).

The spelling of 43040002 in words is "forty-three million, forty thousand, two".