1422678 has 16 divisors (see below), whose sum is σ = 2888640. Its totient is φ = 467016.

The previous prime is 1422677. The next prime is 1422691. The reversal of 1422678 is 8762241.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (180540).

2^1422678 is an apocalyptic number.

1422678 is an abundant number, since it is smaller than the sum of its proper divisors (1465962).

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

1422678 is a wasteful number, since it uses less digits than its factorization.

1422678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611.

The product of its digits is 5376, while the sum is 30.

The square root of 1422678 is about 1192.7606633353. The cubic root of 1422678 is about 112.4697004822.

The spelling of 1422678 in words is "one million, four hundred twenty-two thousand, six hundred seventy-eight".