1421903226 has 32 divisors (see below), whose sum is σ = 2976915456. Its totient is φ = 452214000.

The previous prime is 1421903221. The next prime is 1421903233. The reversal of 1421903226 is 6223091241.

It is a junction number, because it is equal to n+sod(n) for n = 1421903193 and 1421903202.

It is not an unprimeable number, because it can be changed into a prime (1421903221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40630 + ... + 67041.

It is an arithmetic number, because the mean of its divisors is an integer number (93028608).

Almost surely, 2^1421903226 is an apocalyptic number.

1421903226 is an abundant number, since it is smaller than the sum of its proper divisors (1555012230).

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

1421903226 is a wasteful number, since it uses less digits than its factorization.

1421903226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107778.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1421903226 is about 37708.1320937540. The cubic root of 1421903226 is about 1124.4928020840.

Adding to 1421903226 its reverse (6223091241), we get a palindrome (7644994467).

The spelling of 1421903226 in words is "one billion, four hundred twenty-one million, nine hundred three thousand, two hundred twenty-six".