1406320 has 20 divisors (see below), whose sum is σ = 3269880. Its totient is φ = 562496.

The previous prime is 1406311. The next prime is 1406351. The reversal of 1406320 is 236041.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1406294 and 1406303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8710 + ... + 8869.

It is an arithmetic number, because the mean of its divisors is an integer number (163494).

2^1406320 is an apocalyptic number.

1406320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406320 is an abundant number, since it is smaller than the sum of its proper divisors (1863560).

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

1406320 is a wasteful number, since it uses less digits than its factorization.

1406320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17592 (or 17586 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1406320 is about 1185.8836367874. The cubic root of 1406320 is about 112.0369775862.

The spelling of 1406320 in words is "one million, four hundred six thousand, three hundred twenty".