8140490 has 8 divisors (see below), whose sum is σ = 14652900. Its totient is φ = 3256192.

The previous prime is 8140441. The next prime is 8140519. The reversal of 8140490 is 940418.

It can be written as a sum of positive squares in 2 ways, for example, as 6932689 + 1207801 = 2633^2 + 1099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407015 + ... + 407034.

Almost surely, 2^8140490 is an apocalyptic number.

8140490 is a deficient number, since it is larger than the sum of its proper divisors (6512410).

8140490 is a wasteful number, since it uses less digits than its factorization.

8140490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814056.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8140490 is about 2853.1543947007. The cubic root of 8140490 is about 201.1639628116.

The spelling of 8140490 in words is "eight million, one hundred forty thousand, four hundred ninety".