1428537616 has 45 divisors (see below), whose sum is σ = 3045829143. Its totient is φ = 648579360.

The previous prime is 1428537601. The next prime is 1428537647. The reversal of 1428537616 is 6167358241.

The square root of 1428537616 is 37796.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1662595 + ... + 1663453.

Almost surely, 2^1428537616 is an apocalyptic number.

1428537616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1428537616 is the 37796-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428537616

1428537616 is an abundant number, since it is smaller than the sum of its proper divisors (1617291527).

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

1428537616 is an frugal number, since it uses more digits than its factorization.

1428537616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 872 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The cubic root of 1428537616 is about 1126.2389947282.

The spelling of 1428537616 in words is "one billion, four hundred twenty-eight million, five hundred thirty-seven thousand, six hundred sixteen".