1428507576 has 56 divisors (see below), whose sum is σ = 4015856880. Its totient is φ = 476167248.

The previous prime is 1428507547. The next prime is 1428507599. The reversal of 1428507576 is 6757058241.

1428507576 is a `hidden beast` number, since 1 + 4 + 28 + 50 + 7 + 576 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 116640 + ... + 128303.

It is an arithmetic number, because the mean of its divisors is an integer number (71711730).

Almost surely, 2^1428507576 is an apocalyptic number.

It is an amenable number.

1428507576 is an abundant number, since it is smaller than the sum of its proper divisors (2587349304).

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

1428507576 is an equidigital number, since it uses as much as digits as its factorization.

1428507576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244967 (or 244948 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 1428507576 is about 37795.6026013609. The cubic root of 1428507576 is about 1126.2311003015.

It can be divided in two parts, 142850 and 7576, that added together give a triangular number (150426 = T₅₄₈).

The spelling of 1428507576 in words is "one billion, four hundred twenty-eight million, five hundred seven thousand, five hundred seventy-six".