8040090 has 16 divisors (see below), whose sum is σ = 19296288. Its totient is φ = 2144016.

The previous prime is 8040089. The next prime is 8040091. The reversal of 8040090 is 900408.

It is an interprime number because it is at equal distance from previous prime (8040089) and next prime (8040091).

It is not an unprimeable number, because it can be changed into a prime (8040091) 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, 133972 + ... + 134031.

It is an arithmetic number, because the mean of its divisors is an integer number (1206018).

Almost surely, 2^8040090 is an apocalyptic number.

8040090 is an abundant number, since it is smaller than the sum of its proper divisors (11256198).

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

8040090 is a wasteful number, since it uses less digits than its factorization.

8040090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268013.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 8040090 is about 2835.5052459835. The cubic root of 8040090 is about 200.3335268234. Note that the first 3 decimals are identical.

Adding to 8040090 its reverse (900408), we get a palindrome (8940498).

The spelling of 8040090 in words is "eight million, forty thousand, ninety".