1042225420 has 12 divisors (see below), whose sum is σ = 2188673424. Its totient is φ = 416890160.

The previous prime is 1042225391. The next prime is 1042225421. The reversal of 1042225420 is 245222401.

1042225420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1042225391 and 1042225400.

It is not an unprimeable number, because it can be changed into a prime (1042225421) 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, 26055616 + ... + 26055655.

It is an arithmetic number, because the mean of its divisors is an integer number (182389452).

Almost surely, 2^1042225420 is an apocalyptic number.

1042225420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042225420 is an abundant number, since it is smaller than the sum of its proper divisors (1146448004).

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

1042225420 is a wasteful number, since it uses less digits than its factorization.

1042225420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52111280 (or 52111278 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1042225420 is about 32283.5162273257. The cubic root of 1042225420 is about 1013.8815508982.

Adding to 1042225420 its reverse (245222401), we get a palindrome (1287447821).

The spelling of 1042225420 in words is "one billion, forty-two million, two hundred twenty-five thousand, four hundred twenty".