1420041228 has 24 divisors (see below), whose sum is σ = 3487821120. Its totient is φ = 448434000.

The previous prime is 1420041197. The next prime is 1420041257. The reversal of 1420041228 is 8221400241.

It is a junction number, because it is equal to n+sod(n) for n = 1420041198 and 1420041207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113898 + ... + 3114353.

It is an arithmetic number, because the mean of its divisors is an integer number (145325880).

Almost surely, 2^1420041228 is an apocalyptic number.

It is an amenable number.

1420041228 is an abundant number, since it is smaller than the sum of its proper divisors (2067779892).

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

1420041228 is a wasteful number, since it uses less digits than its factorization.

1420041228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228277 (or 6228275 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 1420041228 is about 37683.4343976236. The cubic root of 1420041228 is about 1124.0017424187.

Adding to 1420041228 its reverse (8221400241), we get a palindrome (9641441469).

The spelling of 1420041228 in words is "one billion, four hundred twenty million, forty-one thousand, two hundred twenty-eight".