1306422 has 32 divisors (see below), whose sum is σ = 3128160. Its totient is φ = 401760.

The previous prime is 1306411. The next prime is 1306429. The reversal of 1306422 is 2246031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1306395 and 1306404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (97755).

2^1306422 is an apocalyptic number.

1306422 is an abundant number, since it is smaller than the sum of its proper divisors (1821738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306422 is a wasteful number, since it uses less digits than its factorization.

1306422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1306422 is about 1142.9881889154. The cubic root of 1306422 is about 109.3187092113.

It can be divided in two parts, 1306 and 422, that added together give a cube (1728 = 12³).

The spelling of 1306422 in words is "one million, three hundred six thousand, four hundred twenty-two".