320272465 has 8 divisors (see below), whose sum is σ = 385564608. Its totient is φ = 255392880.

The previous prime is 320272451. The next prime is 320272489. The reversal of 320272465 is 564272023.

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

It is not a de Polignac number, because 320272465 - 2¹⁵ = 320239697 is a prime.

It is a Duffinian number.

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, 101427 + ... + 104536.

It is an arithmetic number, because the mean of its divisors is an integer number (48195576).

Almost surely, 2^320272465 is an apocalyptic number.

It is an amenable number.

320272465 is a deficient number, since it is larger than the sum of its proper divisors (65292143).

320272465 is a wasteful number, since it uses less digits than its factorization.

320272465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206279.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 320272465 is about 17896.1578278691. The cubic root of 320272465 is about 684.1844521814.

The spelling of 320272465 in words is "three hundred twenty million, two hundred seventy-two thousand, four hundred sixty-five".