1422765 has 24 divisors (see below), whose sum is σ = 2559648. Its totient is φ = 758160.

The previous prime is 1422763. The next prime is 1422797. The reversal of 1422765 is 5672241.

It is not a de Polignac number, because 1422765 - 2¹ = 1422763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1422765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 630 + ... + 1800.

It is an arithmetic number, because the mean of its divisors is an integer number (106652).

2^1422765 is an apocalyptic number.

1422765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1422765 is a deficient number, since it is larger than the sum of its proper divisors (1136883).

1422765 is an equidigital number, since it uses as much as digits as its factorization.

1422765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1179 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1422765 is about 1192.7971327933. The cubic root of 1422765 is about 112.4719930282.

It can be divided in two parts, 1422 and 765, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1422765 in words is "one million, four hundred twenty-two thousand, seven hundred sixty-five".