1680464924 has 6 divisors (see below), whose sum is σ = 2940813624. Its totient is φ = 840232460.

The previous prime is 1680464917. The next prime is 1680464941. The reversal of 1680464924 is 4294640861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210058112 + ... + 210058119.

It is an arithmetic number, because the mean of its divisors is an integer number (490135604).

Almost surely, 2^1680464924 is an apocalyptic number.

It is an amenable number.

1680464924 is a deficient number, since it is larger than the sum of its proper divisors (1260348700).

1680464924 is a wasteful number, since it uses less digits than its factorization.

1680464924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420116235 (or 420116233 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 1680464924 is about 40993.4741635788. The cubic root of 1680464924 is about 1188.8940420244.

The spelling of 1680464924 in words is "one billion, six hundred eighty million, four hundred sixty-four thousand, nine hundred twenty-four".