1420556 has 6 divisors (see below), whose sum is σ = 2485980. Its totient is φ = 710276.

The previous prime is 1420519. The next prime is 1420561. The reversal of 1420556 is 6550241.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177566 + ... + 177573.

It is an arithmetic number, because the mean of its divisors is an integer number (414330).

2^1420556 is an apocalyptic number.

It is an amenable number.

1420556 is a deficient number, since it is larger than the sum of its proper divisors (1065424).

1420556 is a wasteful number, since it uses less digits than its factorization.

1420556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355143 (or 355141 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1420556 is about 1191.8707983670. The cubic root of 1420556 is about 112.4137544749.

Adding to 1420556 its reverse (6550241), we get a palindrome (7970797).

The spelling of 1420556 in words is "one million, four hundred twenty thousand, five hundred fifty-six".