1425421356 has 24 divisors (see below), whose sum is σ = 3382357440. Its totient is φ = 467086992.

The previous prime is 1425421313. The next prime is 1425421357. The reversal of 1425421356 is 6531245241.

It is not an unprimeable number, because it can be changed into a prime (1425421357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005946 + ... + 1007361.

It is an arithmetic number, because the mean of its divisors is an integer number (140931560).

Almost surely, 2^1425421356 is an apocalyptic number.

It is an amenable number.

1425421356 is an abundant number, since it is smaller than the sum of its proper divisors (1956936084).

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

1425421356 is a wasteful number, since it uses less digits than its factorization.

1425421356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013373 (or 2013371 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 1425421356 is about 37754.7527604142. The cubic root of 1425421356 is about 1125.4194599786.

Adding to 1425421356 its reverse (6531245241), we get a palindrome (7956666597).

The spelling of 1425421356 in words is "one billion, four hundred twenty-five million, four hundred twenty-one thousand, three hundred fifty-six".