1428252566 has 8 divisors (see below), whose sum is σ = 2307177264. Its totient is φ = 659193480.

The previous prime is 1428252563. The next prime is 1428252587. The reversal of 1428252566 is 6652528241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428252563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27466370 + ... + 27466421.

It is an arithmetic number, because the mean of its divisors is an integer number (288397158).

Almost surely, 2^1428252566 is an apocalyptic number.

1428252566 is a deficient number, since it is larger than the sum of its proper divisors (878924698).

1428252566 is a wasteful number, since it uses less digits than its factorization.

1428252566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54932806.

The product of its digits is 230400, while the sum is 41.

The square root of 1428252566 is about 37792.2289101873. The cubic root of 1428252566 is about 1126.1640799395.

The spelling of 1428252566 in words is "one billion, four hundred twenty-eight million, two hundred fifty-two thousand, five hundred sixty-six".