1428763228 has 12 divisors (see below), whose sum is σ = 2541325192. Its totient is φ = 702670320.

The previous prime is 1428763211. The next prime is 1428763229. The reversal of 1428763228 is 8223678241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428763229) 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, 2927550 + ... + 2928037.

Almost surely, 2^1428763228 is an apocalyptic number.

It is an amenable number.

1428763228 is a deficient number, since it is larger than the sum of its proper divisors (1112561964).

1428763228 is a wasteful number, since it uses less digits than its factorization.

1428763228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855652 (or 5855650 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 1428763228 is about 37798.9844837133. The cubic root of 1428763228 is about 1126.2982813847.

The spelling of 1428763228 in words is "one billion, four hundred twenty-eight million, seven hundred sixty-three thousand, two hundred twenty-eight".