43939998 has 12 divisors (see below), whose sum is σ = 95203368. Its totient is φ = 14646660.

The previous prime is 43939997. The next prime is 43940003. The reversal of 43939998 is 89993934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43939993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1220538 + ... + 1220573.

It is an arithmetic number, because the mean of its divisors is an integer number (7933614).

Almost surely, 2^43939998 is an apocalyptic number.

43939998 is an abundant number, since it is smaller than the sum of its proper divisors (51263370).

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

43939998 is a wasteful number, since it uses less digits than its factorization.

43939998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441119 (or 2441116 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 43939998 is about 6628.7252168121. The cubic root of 43939998 is about 352.8742848035.

The spelling of 43939998 in words is "forty-three million, nine hundred thirty-nine thousand, nine hundred ninety-eight".