1768480644 has 48 divisors (see below), whose sum is σ = 4724335616. Its totient is φ = 504381600.

The previous prime is 1768480619. The next prime is 1768480657. The reversal of 1768480644 is 4460848671.

It is a junction number, because it is equal to n+sod(n) for n = 1768480593 and 1768480602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29529 + ... + 66399.

Almost surely, 2^1768480644 is an apocalyptic number.

1768480644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1768480644 is an abundant number, since it is smaller than the sum of its proper divisors (2955854972).

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

1768480644 is a wasteful number, since it uses less digits than its factorization.

1768480644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37456 (or 37454 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 1768480644 is about 42053.3071707803. The cubic root of 1768480644 is about 1209.2982849347.

The spelling of 1768480644 in words is "one billion, seven hundred sixty-eight million, four hundred eighty thousand, six hundred forty-four".