1428814648 has 32 divisors (see below), whose sum is σ = 2815961760. Its totient is φ = 678346240.

The previous prime is 1428814637. The next prime is 1428814663. The reversal of 1428814648 is 8464188241.

It is a super-2 number, since 2×1428814648² = 4083022596678727808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 1428814598 and 1428814607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133 + ... + 53548.

It is an arithmetic number, because the mean of its divisors is an integer number (87998805).

Almost surely, 2^1428814648 is an apocalyptic number.

It is an amenable number.

1428814648 is a deficient number, since it is larger than the sum of its proper divisors (1387147112).

1428814648 is a wasteful number, since it uses less digits than its factorization.

1428814648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56847 (or 56843 counting only the distinct ones).

The product of its digits is 393216, while the sum is 46.

The square root of 1428814648 is about 37799.6646545971. The cubic root of 1428814648 is about 1126.3117927354.

The spelling of 1428814648 in words is "one billion, four hundred twenty-eight million, eight hundred fourteen thousand, six hundred forty-eight".