1420554 has 32 divisors (see below), whose sum is σ = 3170880. Its totient is φ = 421632.

The previous prime is 1420519. The next prime is 1420561. The reversal of 1420554 is 4550241.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420554.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572 + ... + 2304.

It is an arithmetic number, because the mean of its divisors is an integer number (99090).

2^1420554 is an apocalyptic number.

1420554 is an abundant number, since it is smaller than the sum of its proper divisors (1750326).

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

1420554 is a wasteful number, since it uses less digits than its factorization.

1420554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1420554 is about 1191.8699593496. The cubic root of 1420554 is about 112.4137017191.

Adding to 1420554 its reverse (4550241), we get a palindrome (5970795).

The spelling of 1420554 in words is "one million, four hundred twenty thousand, five hundred fifty-four".