7201090 has 24 divisors (see below), whose sum is σ = 14039028. Its totient is φ = 2658240.

The previous prime is 7201063. The next prime is 7201091. The reversal of 7201090 is 901027.

It can be written as a sum of positive squares in 6 ways, for example, as 2461761 + 4739329 = 1569^2 + 2177^2 .

It is not an unprimeable number, because it can be changed into a prime (7201091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441 + ... + 3820.

Almost surely, 2^7201090 is an apocalyptic number.

7201090 is a deficient number, since it is larger than the sum of its proper divisors (6837938).

7201090 is a wasteful number, since it uses less digits than its factorization.

7201090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4281 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 7201090 is about 2683.4846748212. The cubic root of 7201090 is about 193.1076207205.

The spelling of 7201090 in words is "seven million, two hundred one thousand, ninety".