1680824452 has 48 divisors (see below), whose sum is σ = 3135525120. Its totient is φ = 786728448.

The previous prime is 1680824443. The next prime is 1680824473. The reversal of 1680824452 is 2544280861.

It is a happy number.

It is a super-2 number, since 2×1680824452² = 5650341676882200608, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 842368 + ... + 844360.

It is an arithmetic number, because the mean of its divisors is an integer number (65323440).

Almost surely, 2^1680824452 is an apocalyptic number.

It is an amenable number.

1680824452 is a deficient number, since it is larger than the sum of its proper divisors (1454700668).

1680824452 is a wasteful number, since it uses less digits than its factorization.

1680824452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 1680824452 is about 40997.8591148367. The cubic root of 1680824452 is about 1188.9788221769.

The spelling of 1680824452 in words is "one billion, six hundred eighty million, eight hundred twenty-four thousand, four hundred fifty-two".