1428306548 has 6 divisors (see below), whose sum is σ = 2499536466. Its totient is φ = 714153272.

The previous prime is 1428306499. The next prime is 1428306563. The reversal of 1428306548 is 8456038241.

It can be written as a sum of positive squares in only one way, i.e., 1426723984 + 1582564 = 37772^2 + 1258^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178538315 + ... + 178538322.

It is an arithmetic number, because the mean of its divisors is an integer number (416589411).

Almost surely, 2^1428306548 is an apocalyptic number.

It is an amenable number.

1428306548 is a deficient number, since it is larger than the sum of its proper divisors (1071229918).

1428306548 is a wasteful number, since it uses less digits than its factorization.

1428306548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357076641 (or 357076639 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1428306548 is about 37792.9430978854. The cubic root of 1428306548 is about 1126.1782678652.

The spelling of 1428306548 in words is "one billion, four hundred twenty-eight million, three hundred six thousand, five hundred forty-eight".