8640190 has 16 divisors (see below), whose sum is σ = 16748928. Its totient is φ = 3190176.

The previous prime is 8640187. The next prime is 8640197. The reversal of 8640190 is 910468.

It is a super-2 number, since 2×8640190² = 149305766472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8640197) 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, 33102 + ... + 33361.

It is an arithmetic number, because the mean of its divisors is an integer number (1046808).

Almost surely, 2^8640190 is an apocalyptic number.

8640190 is a deficient number, since it is larger than the sum of its proper divisors (8108738).

8640190 is a wasteful number, since it uses less digits than its factorization.

8640190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66483.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8640190 is about 2939.4200108185. The cubic root of 8640190 is about 205.1986177357.

The spelling of 8640190 in words is "eight million, six hundred forty thousand, one hundred ninety".