8020390 has 16 divisors (see below), whose sum is σ = 16499232. Its totient is φ = 2749824.

The previous prime is 8020387. The next prime is 8020393. The reversal of 8020390 is 930208.

It is an interprime number because it is at equal distance from previous prime (8020387) and next prime (8020393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8020393) 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, 57219 + ... + 57358.

It is an arithmetic number, because the mean of its divisors is an integer number (1031202).

Almost surely, 2^8020390 is an apocalyptic number.

8020390 is an abundant number, since it is smaller than the sum of its proper divisors (8478842).

8020390 is a wasteful number, since it uses less digits than its factorization.

8020390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114591.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 8020390 is about 2832.0293077580. The cubic root of 8020390 is about 200.1697725124.

Adding to 8020390 its reverse (930208), we get a palindrome (8950598).

The spelling of 8020390 in words is "eight million, twenty thousand, three hundred ninety".