320240507 has 2 divisors, whose sum is σ = 320240508. Its totient is φ = 320240506.

The previous prime is 320240489. The next prime is 320240519. The reversal of 320240507 is 705042023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320240507 - 2⁸ = 320240251 is a prime.

It is not a weakly prime, because it can be changed into another prime (320240527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160120253 + 160120254.

It is an arithmetic number, because the mean of its divisors is an integer number (160120254).

Almost surely, 2^320240507 is an apocalyptic number.

320240507 is a deficient number, since it is larger than the sum of its proper divisors (1).

320240507 is an equidigital number, since it uses as much as digits as its factorization.

320240507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 320240507 is about 17895.2649323781. The cubic root of 320240507 is about 684.1616945855.

The spelling of 320240507 in words is "three hundred twenty million, two hundred forty thousand, five hundred seven".