1428959232 has 260 divisors, whose sum is σ = 4400532840. Its totient is φ = 461832192.

The previous prime is 1428959227. The next prime is 1428959237. The reversal of 1428959232 is 2329598241.

1428959232 is a `hidden beast` number, since 1 + 4 + 28 + 9 + 592 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (1428959227) and next prime (1428959237).

It is not an unprimeable number, because it can be changed into a prime (1428959237) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19574748 + ... + 19574820.

Almost surely, 2^1428959232 is an apocalyptic number.

1428959232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428959232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2200266420).

1428959232 is an abundant number, since it is smaller than the sum of its proper divisors (2971573608).

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

1428959232 is an frugal number, since it uses more digits than its factorization.

1428959232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 137 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1428959232 is about 37801.5771099567. The cubic root of 1428959232 is about 1126.3497825408.

The spelling of 1428959232 in words is "one billion, four hundred twenty-eight million, nine hundred fifty-nine thousand, two hundred thirty-two".