1428421952 has 28 divisors (see below), whose sum is σ = 2873363316. Its totient is φ = 704424960.

The previous prime is 1428421927. The next prime is 1428421961. The reversal of 1428421952 is 2591248241.

It can be written as a sum of positive squares in 2 ways, for example, as 300536896 + 1127885056 = 17336^2 + 33584^2 .

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, 148199 + ... + 157542.

Almost surely, 2^1428421952 is an apocalyptic number.

It is an amenable number.

1428421952 is an abundant number, since it is smaller than the sum of its proper divisors (1444941364).

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

1428421952 is an equidigital number, since it uses as much as digits as its factorization.

1428421952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305826 (or 305816 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1428421952 is about 37794.4698600205. The cubic root of 1428421952 is about 1126.2085979501.

The spelling of 1428421952 in words is "one billion, four hundred twenty-eight million, four hundred twenty-one thousand, nine hundred fifty-two".