43868990 has 32 divisors (see below), whose sum is σ = 87130080. Its totient is φ = 15769600.

The previous prime is 43868977. The next prime is 43869011. The reversal of 43868990 is 9986834.

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, 7550 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (2722815).

Almost surely, 2^43868990 is an apocalyptic number.

43868990 is a deficient number, since it is larger than the sum of its proper divisors (43261090).

43868990 is a wasteful number, since it uses less digits than its factorization.

43868990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 43868990 is about 6623.3669685440. The cubic root of 43868990 is about 352.6840981248.

The spelling of 43868990 in words is "forty-three million, eight hundred sixty-eight thousand, nine hundred ninety".