1428623564 has 12 divisors (see below), whose sum is σ = 2608791024. Its totient is φ = 683254704.

The previous prime is 1428623551. The next prime is 1428623629. The reversal of 1428623564 is 4653268241.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7764167 + ... + 7764350.

It is an arithmetic number, because the mean of its divisors is an integer number (217399252).

Almost surely, 2^1428623564 is an apocalyptic number.

It is an amenable number.

1428623564 is a deficient number, since it is larger than the sum of its proper divisors (1180167460).

1428623564 is a wasteful number, since it uses less digits than its factorization.

1428623564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15528544 (or 15528542 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 1428623564 is about 37797.1369815228. The cubic root of 1428623564 is about 1126.2615810073.

The spelling of 1428623564 in words is "one billion, four hundred twenty-eight million, six hundred twenty-three thousand, five hundred sixty-four".