1428508116 has 48 divisors (see below), whose sum is σ = 4232618880. Its totient is φ = 408144960.

The previous prime is 1428508093. The next prime is 1428508121. The reversal of 1428508116 is 6118058241.

1428508116 is a `hidden beast` number, since 14 + 28 + 508 + 116 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944025 + ... + 945536.

It is an arithmetic number, because the mean of its divisors is an integer number (88179560).

Almost surely, 2^1428508116 is an apocalyptic number.

It is an amenable number.

1428508116 is an abundant number, since it is smaller than the sum of its proper divisors (2804110764).

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

1428508116 is a wasteful number, since it uses less digits than its factorization.

1428508116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889581 (or 1889573 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1428508116 is about 37795.6097450484. The cubic root of 1428508116 is about 1126.2312422130.

The spelling of 1428508116 in words is "one billion, four hundred twenty-eight million, five hundred eight thousand, one hundred sixteen".