1420267 has 4 divisors (see below), whose sum is σ = 1434160. Its totient is φ = 1406376.

The previous prime is 1420261. The next prime is 1420277. The reversal of 1420267 is 7620241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420267 - 2³ = 1420259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6792 + ... + 6997.

It is an arithmetic number, because the mean of its divisors is an integer number (358540).

2^1420267 is an apocalyptic number.

1420267 is a deficient number, since it is larger than the sum of its proper divisors (13893).

1420267 is a wasteful number, since it uses less digits than its factorization.

1420267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13892.

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

The square root of 1420267 is about 1191.7495542269. The cubic root of 1420267 is about 112.4061307514.

The spelling of 1420267 in words is "one million, four hundred twenty thousand, two hundred sixty-seven".