1283260664 has 24 divisors (see below), whose sum is σ = 2750418840. Its totient is φ = 549853968.

The previous prime is 1283260637. The next prime is 1283260669. The reversal of 1283260664 is 4660623821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283260669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265679 + ... + 270465.

It is an arithmetic number, because the mean of its divisors is an integer number (114600785).

Almost surely, 2^1283260664 is an apocalyptic number.

1283260664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1283260664 is an abundant number, since it is smaller than the sum of its proper divisors (1467158176).

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

1283260664 is an frugal number, since it uses more digits than its factorization.

1283260664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587 (or 4796 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 1283260664 is about 35822.6278209737. The cubic root of 1283260664 is about 1086.6882236096.

The spelling of 1283260664 in words is "one billion, two hundred eighty-three million, two hundred sixty thousand, six hundred sixty-four".