8120490 has 32 divisors (see below), whose sum is σ = 22273920. Its totient is φ = 1856064.

The previous prime is 8120479. The next prime is 8120491. The reversal of 8120490 is 940218.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8120490.

It is not an unprimeable number, because it can be changed into a prime (8120491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19125 + ... + 19544.

It is an arithmetic number, because the mean of its divisors is an integer number (696060).

Almost surely, 2^8120490 is an apocalyptic number.

8120490 is an abundant number, since it is smaller than the sum of its proper divisors (14153430).

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

8120490 is a wasteful number, since it uses less digits than its factorization.

8120490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38686.

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

The square root of 8120490 is about 2849.6473466027. The cubic root of 8120490 is about 200.9990841769. Note that the first 3 decimals are identical.

The spelling of 8120490 in words is "eight million, one hundred twenty thousand, four hundred ninety".