1622265 has 24 divisors (see below), whose sum is σ = 2701440. Its totient is φ = 831168.

The previous prime is 1622263. The next prime is 1622273. The reversal of 1622265 is 5622261.

It is not a de Polignac number, because 1622265 - 2¹ = 1622263 is a prime.

1622265 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20496 + ... + 20574.

It is an arithmetic number, because the mean of its divisors is an integer number (112560).

2^1622265 is an apocalyptic number.

1622265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1622265 is a deficient number, since it is larger than the sum of its proper divisors (1079175).

1622265 is an equidigital number, since it uses as much as digits as its factorization.

1622265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 124 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1622265 is about 1273.6816713763. The cubic root of 1622265 is about 117.5007393948.

The spelling of 1622265 in words is "one million, six hundred twenty-two thousand, two hundred sixty-five".