1420704 has 36 divisors (see below), whose sum is σ = 4040946. Its totient is φ = 473472.

The previous prime is 1420697. The next prime is 1420717. The reversal of 1420704 is 4070241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 121104 = 1140^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2179 + ... + 2754.

2^1420704 is an apocalyptic number.

It is an amenable number.

1420704 is an abundant number, since it is smaller than the sum of its proper divisors (2620242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420704 is a wasteful number, since it uses less digits than its factorization.

1420704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1420704 is about 1191.9328840165. The cubic root of 1420704 is about 112.4176582651.

Adding to 1420704 its reverse (4070241), we get a palindrome (5490945).

The spelling of 1420704 in words is "one million, four hundred twenty thousand, seven hundred four".