1420011 has 20 divisors (see below), whose sum is σ = 2172192. Its totient is φ = 924048.

The previous prime is 1420009. The next prime is 1420031. The reversal of 1420011 is 1100241.

It is a happy number.

It is not a de Polignac number, because 1420011 - 2¹ = 1420009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1419975 and 1420002.

It is not an unprimeable number, because it can be changed into a prime (1420031) 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 19 ways as a sum of consecutive naturals, for example, 3621 + ... + 3993.

2^1420011 is an apocalyptic number.

1420011 is a deficient number, since it is larger than the sum of its proper divisors (752181).

1420011 is an equidigital number, since it uses as much as digits as its factorization.

1420011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1420011 is about 1191.6421442698. The cubic root of 1420011 is about 112.3993766931.

Adding to 1420011 its reverse (1100241), we get a palindrome (2520252).

The spelling of 1420011 in words is "one million, four hundred twenty thousand, eleven".