1421013228 has 48 divisors (see below), whose sum is σ = 3393653760. Its totient is φ = 462578944.

The previous prime is 1421013227. The next prime is 1421013283. The reversal of 1421013228 is 8223101241.

It is a junction number, because it is equal to n+sod(n) for n = 1421013198 and 1421013207.

It is not an unprimeable number, because it can be changed into a prime (1421013227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281188 + ... + 286196.

It is an arithmetic number, because the mean of its divisors is an integer number (70701120).

Almost surely, 2^1421013228 is an apocalyptic number.

It is an amenable number.

1421013228 is an abundant number, since it is smaller than the sum of its proper divisors (1972640532).

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

1421013228 is a wasteful number, since it uses less digits than its factorization.

1421013228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1421013228 is about 37696.3291050999. The cubic root of 1421013228 is about 1124.2581388511.

Adding to 1421013228 its reverse (8223101241), we get a palindrome (9644114469).

It can be divided in two parts, 1421013 and 228, that added together give a palindrome (1421241).

The spelling of 1421013228 in words is "one billion, four hundred twenty-one million, thirteen thousand, two hundred twenty-eight".