320265434 has 16 divisors (see below), whose sum is σ = 483302400. Its totient is φ = 159168240.

The previous prime is 320265403. The next prime is 320265443. The reversal of 320265434 is 434562023.

It is a junction number, because it is equal to n+sod(n) for n = 320265397 and 320265406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322679 + ... + 323669.

It is an arithmetic number, because the mean of its divisors is an integer number (30206400).

Almost surely, 2^320265434 is an apocalyptic number.

320265434 is a deficient number, since it is larger than the sum of its proper divisors (163036966).

320265434 is a wasteful number, since it uses less digits than its factorization.

320265434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 320265434 is about 17895.9613879780. The cubic root of 320265434 is about 684.1794454693.

The spelling of 320265434 in words is "three hundred twenty million, two hundred sixty-five thousand, four hundred thirty-four".