1426320 has 120 divisors (see below), whose sum is σ = 5493696. Its totient is φ = 324864.

The previous prime is 1426303. The next prime is 1426331. The reversal of 1426320 is 236241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 1426293 and 1426302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4899 + ... + 5181.

2^1426320 is an apocalyptic number.

1426320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2746848).

1426320 is an abundant number, since it is smaller than the sum of its proper divisors (4067376).

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

1426320 is a wasteful number, since it uses less digits than its factorization.

1426320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 300 counting only the distinct ones).

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

The square root of 1426320 is about 1194.2863978125. The cubic root of 1426320 is about 112.5655913802.

The spelling of 1426320 in words is "one million, four hundred twenty-six thousand, three hundred twenty".