307490 has 16 divisors (see below), whose sum is σ = 560952. Its totient is φ = 121344.

The previous prime is 307481. The next prime is 307511. The reversal of 307490 is 94703.

307490 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 160801 + 146689 = 401^2 + 383^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307490.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 812 + ... + 1128.

2³⁰⁷⁴⁹⁰ is an apocalyptic number.

307490 is a deficient number, since it is larger than the sum of its proper divisors (253462).

307490 is a wasteful number, since it uses less digits than its factorization.

307490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 307490 is about 554.5178085508. The cubic root of 307490 is about 67.4958387924.

It can be divided in two parts, 307 and 490, that added together give a palindrome (797).

The spelling of 307490 in words is "three hundred seven thousand, four hundred ninety".