1420726 has 16 divisors (see below), whose sum is σ = 2227104. Its totient is φ = 679104.

The previous prime is 1420721. The next prime is 1420729. The reversal of 1420726 is 6270241.

It is a junction number, because it is equal to n+sod(n) for n = 1420697 and 1420706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420721) 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 7 ways as a sum of consecutive naturals, for example, 5271 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (139194).

2^1420726 is an apocalyptic number.

1420726 is a deficient number, since it is larger than the sum of its proper divisors (806378).

1420726 is a wasteful number, since it uses less digits than its factorization.

1420726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1420726 is about 1191.9421126884. The cubic root of 1420726 is about 112.4182385351.

Adding to 1420726 its reverse (6270241), we get a palindrome (7690967).

The spelling of 1420726 in words is "one million, four hundred twenty thousand, seven hundred twenty-six".