1420939 has 4 divisors (see below), whose sum is σ = 1530256. Its totient is φ = 1311624.

The previous prime is 1420933. The next prime is 1420949. The reversal of 1420939 is 9390241.

It is a happy number.

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 1420939 - 2³ = 1420931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420931) 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, 54639 + ... + 54664.

It is an arithmetic number, because the mean of its divisors is an integer number (382564).

2^1420939 is an apocalyptic number.

1420939 is a deficient number, since it is larger than the sum of its proper divisors (109317).

1420939 is a wasteful number, since it uses less digits than its factorization.

1420939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109316.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1420939 is about 1192.0314593164. The cubic root of 1420939 is about 112.4238562940.

The spelling of 1420939 in words is "one million, four hundred twenty thousand, nine hundred thirty-nine".