8001390 has 64 divisors (see below), whose sum is σ = 21072960. Its totient is φ = 1935360.

The previous prime is 8001359. The next prime is 8001491. The reversal of 8001390 is 931008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14520 + ... + 15060.

It is an arithmetic number, because the mean of its divisors is an integer number (329265).

Almost surely, 2^8001390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8001390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10536480).

8001390 is an abundant number, since it is smaller than the sum of its proper divisors (13071570).

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

8001390 is a wasteful number, since it uses less digits than its factorization.

8001390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 8001390 is about 2828.6728336801. The cubic root of 8001390 is about 200.0115826625.

Adding to 8001390 its reverse (931008), we get a palindrome (8932398).

The spelling of 8001390 in words is "eight million, one thousand, three hundred ninety".