43980988 has 12 divisors (see below), whose sum is σ = 77111272. Its totient is φ = 21949200.

The previous prime is 43980983. The next prime is 43981027. The reversal of 43980988 is 88908934.

It is a happy number.

It is a super-2 number, since 2×43980988² = 3868654610912288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43980983) 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, 7863 + ... + 12238.

Almost surely, 2^43980988 is an apocalyptic number.

It is an amenable number.

43980988 is a deficient number, since it is larger than the sum of its proper divisors (33130284).

43980988 is a wasteful number, since it uses less digits than its factorization.

43980988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20652 (or 20650 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 43980988 is about 6631.8163424510. The cubic root of 43980988 is about 352.9839784932.

The spelling of 43980988 in words is "forty-three million, nine hundred eighty thousand, nine hundred eighty-eight".