8189390 has 16 divisors (see below), whose sum is σ = 16081200. Its totient is φ = 2977920.

The previous prime is 8189387. The next prime is 8189411. The reversal of 8189390 is 939818.

It is a super-2 number, since 2×8189390² = 134132217144200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37115 + ... + 37334.

It is an arithmetic number, because the mean of its divisors is an integer number (1005075).

Almost surely, 2^8189390 is an apocalyptic number.

8189390 is a deficient number, since it is larger than the sum of its proper divisors (7891810).

8189390 is a wasteful number, since it uses less digits than its factorization.

8189390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74467.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8189390 is about 2861.7110266412. The cubic root of 8189390 is about 201.5659568944.

The spelling of 8189390 in words is "eight million, one hundred eighty-nine thousand, three hundred ninety".