8401918 has 16 divisors (see below), whose sum is σ = 14490720. Its totient is φ = 3578976.

The previous prime is 8401907. The next prime is 8401919. The reversal of 8401918 is 8191048.

8401918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8401918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (905670).

Almost surely, 2^8401918 is an apocalyptic number.

8401918 is a deficient number, since it is larger than the sum of its proper divisors (6088802).

8401918 is a wasteful number, since it uses less digits than its factorization.

8401918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 8401918 is about 2898.6062167876. The cubic root of 8401918 is about 203.2947419968.

The spelling of 8401918 in words is "eight million, four hundred one thousand, nine hundred eighteen".