8001918 has 24 divisors (see below), whose sum is σ = 17520048. Its totient is φ = 2639232.

The previous prime is 8001911. The next prime is 8001949. The reversal of 8001918 is 8191008.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8001891 and 8001900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8001911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (730002).

Almost surely, 2^8001918 is an apocalyptic number.

8001918 is an abundant number, since it is smaller than the sum of its proper divisors (9518130).

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

8001918 is a wasteful number, since it uses less digits than its factorization.

8001918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 8001918 is about 2828.7661621279. The cubic root of 8001918 is about 200.0159820562.

The spelling of 8001918 in words is "eight million, one thousand, nine hundred eighteen".