1428312472 has 16 divisors (see below), whose sum is σ = 2710353240. Its totient is φ = 705551616.

The previous prime is 1428312461. The next prime is 1428312493. The reversal of 1428312472 is 2742138241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074873 + ... + 1076200.

Almost surely, 2^1428312472 is an apocalyptic number.

It is an amenable number.

1428312472 is a deficient number, since it is larger than the sum of its proper divisors (1282040768).

1428312472 is a wasteful number, since it uses less digits than its factorization.

1428312472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151162 (or 2151158 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 1428312472 is about 37793.0214722242. The cubic root of 1428312472 is about 1126.1798248304.

The spelling of 1428312472 in words is "one billion, four hundred twenty-eight million, three hundred twelve thousand, four hundred seventy-two".