7290090 has 24 divisors (see below), whose sum is σ = 18954468. Its totient is φ = 1944000.

The previous prime is 7290089. The next prime is 7290119. The reversal of 7290090 is 900927.

It can be written as a sum of positive squares in 2 ways, for example, as 7144929 + 145161 = 2673^2 + 381^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40411 + ... + 40590.

Almost surely, 2^7290090 is an apocalyptic number.

7290090 is an abundant number, since it is smaller than the sum of its proper divisors (11664378).

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

7290090 is a wasteful number, since it uses less digits than its factorization.

7290090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81014 (or 81011 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 7290090 is about 2700.0166666152. The cubic root of 7290090 is about 193.8999200384.

The spelling of 7290090 in words is "seven million, two hundred ninety thousand, ninety".