7040090 has 8 divisors (see below), whose sum is σ = 12672180. Its totient is φ = 2816032.

The previous prime is 7040081. The next prime is 7040113. The reversal of 7040090 is 900407.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 1681 = 2653^2 + 41^2 .

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, 351995 + ... + 352014.

Almost surely, 2^7040090 is an apocalyptic number.

7040090 is a deficient number, since it is larger than the sum of its proper divisors (5632090).

7040090 is a wasteful number, since it uses less digits than its factorization.

7040090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704016.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 7040090 is about 2653.3167922432. The cubic root of 7040090 is about 191.6576109983.

Adding to 7040090 its reverse (900407), we get a palindrome (7940497).

The spelling of 7040090 in words is "seven million, forty thousand, ninety".