1920265 has 8 divisors (see below), whose sum is σ = 2336328. Its totient is φ = 1514880.

The previous prime is 1920257. The next prime is 1920271. The reversal of 1920265 is 5620291.

It can be written as a sum of positive squares in 4 ways, for example, as 414736 + 1505529 = 644^2 + 1227^2 .

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

It is not a de Polignac number, because 1920265 - 2³ = 1920257 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, 2266 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (292041).

2^1920265 is an apocalyptic number.

It is an amenable number.

1920265 is a deficient number, since it is larger than the sum of its proper divisors (416063).

1920265 is an equidigital number, since it uses as much as digits as its factorization.

1920265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1920265 is about 1385.7362663942. The cubic root of 1920265 is about 124.2950181460.

The spelling of 1920265 in words is "one million, nine hundred twenty thousand, two hundred sixty-five".