8021490 has 32 divisors (see below), whose sum is σ = 19664640. Its totient is φ = 2093184.

The previous prime is 8021471. The next prime is 8021539. The reversal of 8021490 is 941208.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8021490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1435 + ... + 4254.

It is an arithmetic number, because the mean of its divisors is an integer number (614520).

Almost surely, 2^8021490 is an apocalyptic number.

8021490 is an abundant number, since it is smaller than the sum of its proper divisors (11643150).

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

8021490 is a wasteful number, since it uses less digits than its factorization.

8021490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8021490 is about 2832.2235081293. The cubic root of 8021490 is about 200.1789232180.

Adding to 8021490 its reverse (941208), we get a palindrome (8962698).

The spelling of 8021490 in words is "eight million, twenty-one thousand, four hundred ninety".