8943940 has 12 divisors (see below), whose sum is σ = 18782316. Its totient is φ = 3577568.

The previous prime is 8943937. The next prime is 8943943. The reversal of 8943940 is 493498.

It is an interprime number because it is at equal distance from previous prime (8943937) and next prime (8943943).

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 7828804 = 1056^2 + 2798^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8943940.

It is not an unprimeable number, because it can be changed into a prime (8943943) 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, 223579 + ... + 223618.

It is an arithmetic number, because the mean of its divisors is an integer number (1565193).

Almost surely, 2^8943940 is an apocalyptic number.

It is an amenable number.

8943940 is an abundant number, since it is smaller than the sum of its proper divisors (9838376).

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

8943940 is a wasteful number, since it uses less digits than its factorization.

8943940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447206 (or 447204 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8943940 is about 2990.6420715291. The cubic root of 8943940 is about 207.5755954299.

The spelling of 8943940 in words is "eight million, nine hundred forty-three thousand, nine hundred forty".