1420043 has 8 divisors (see below), whose sum is σ = 1533600. Its totient is φ = 1310848.

The previous prime is 1420039. The next prime is 1420057. The reversal of 1420043 is 3400241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1420043 - 2² = 1420039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 398 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (191700).

2^1420043 is an apocalyptic number.

1420043 is a deficient number, since it is larger than the sum of its proper divisors (113557).

1420043 is a wasteful number, since it uses less digits than its factorization.

1420043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1420043 is about 1191.6555710439. The cubic root of 1420043 is about 112.4002209947.

Adding to 1420043 its reverse (3400241), we get a palindrome (4820284).

The spelling of 1420043 in words is "one million, four hundred twenty thousand, forty-three".