43985920980 has 48 divisors (see below), whose sum is σ = 123805430784. Its totient is φ = 11668164480.

The previous prime is 43985920969. The next prime is 43985920997. The reversal of 43985920980 is 8902958934.

It is a super-2 number, since 2×43985920980² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43985920980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1907647 + ... + 1930566.

It is an arithmetic number, because the mean of its divisors is an integer number (2579279808).

Almost surely, 2^43985920980 is an apocalyptic number.

It is an amenable number.

43985920980 is an abundant number, since it is smaller than the sum of its proper divisors (79819509804).

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

43985920980 is a wasteful number, since it uses less digits than its factorization.

43985920980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838416 (or 3838414 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 43985920980 in words is "forty-three billion, nine hundred eighty-five million, nine hundred twenty thousand, nine hundred eighty".