43698042 has 20 divisors (see below), whose sum is σ = 97916346. Its totient is φ = 14565960.

The previous prime is 43698013. The next prime is 43698047. The reversal of 43698042 is 24089634.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38675961 + 5022081 = 6219^2 + 2241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43697988 and 43698006.

It is not an unprimeable number, because it can be changed into a prime (43698047) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 134709 + ... + 135032.

Almost surely, 2^43698042 is an apocalyptic number.

43698042 is an abundant number, since it is smaller than the sum of its proper divisors (54218304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43698042 is a wasteful number, since it uses less digits than its factorization.

43698042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269755 (or 269746 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 43698042 is about 6610.4494552186. The cubic root of 43698042 is about 352.2253904712.

The spelling of 43698042 in words is "forty-three million, six hundred ninety-eight thousand, forty-two".