8436940 has 12 divisors (see below), whose sum is σ = 17717616. Its totient is φ = 3374768.

The previous prime is 8436937. The next prime is 8436949. The reversal of 8436940 is 496348.

It is a junction number, because it is equal to n+sod(n) for n = 8436896 and 8436905.

It is not an unprimeable number, because it can be changed into a prime (8436949) 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, 210904 + ... + 210943.

It is an arithmetic number, because the mean of its divisors is an integer number (1476468).

Almost surely, 2^8436940 is an apocalyptic number.

It is an amenable number.

8436940 is an abundant number, since it is smaller than the sum of its proper divisors (9280676).

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

8436940 is a wasteful number, since it uses less digits than its factorization.

8436940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421856 (or 421854 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 8436940 is about 2904.6411138039. The cubic root of 8436940 is about 203.5768172224.

The spelling of 8436940 in words is "eight million, four hundred thirty-six thousand, nine hundred forty".