207490 has 8 divisors (see below), whose sum is σ = 373500. Its totient is φ = 82992.

The previous prime is 207481. The next prime is 207491. The reversal of 207490 is 94702.

It can be written as a sum of positive squares in 2 ways, for example, as 178929 + 28561 = 423^2 + 169^2 .

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

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (207491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10365 + ... + 10384.

2²⁰⁷⁴⁹⁰ is an apocalyptic number.

207490 is a deficient number, since it is larger than the sum of its proper divisors (166010).

207490 is a wasteful number, since it uses less digits than its factorization.

207490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20756.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 207490 is about 455.5107023990. The cubic root of 207490 is about 59.2014563192.

The spelling of 207490 in words is "two hundred seven thousand, four hundred ninety".