307430 has 16 divisors (see below), whose sum is σ = 562464. Its totient is φ = 120960.

The previous prime is 307423. The next prime is 307451. The reversal of 307430 is 34703.

It is an Ulam number.

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

It is a junction number, because it is equal to n+sod(n) for n = 307399 and 307408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307430.

It is an unprimeable number.

307430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (35154).

2³⁰⁷⁴³⁰ is an apocalyptic number.

307430 is a deficient number, since it is larger than the sum of its proper divisors (255034).

307430 is a wasteful number, since it uses less digits than its factorization.

307430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 307430 is about 554.4637048536. The cubic root of 307430 is about 67.4914483908.

It can be divided in two parts, 307 and 430, that added together give a palindrome (737).

The spelling of 307430 in words is "three hundred seven thousand, four hundred thirty".