1283909460 has 96 divisors (see below), whose sum is σ = 3757743360. Its totient is φ = 327118848.

The previous prime is 1283909447. The next prime is 1283909521. The reversal of 1283909460 is 649093821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164977 + ... + 172583.

It is an arithmetic number, because the mean of its divisors is an integer number (39143160).

Almost surely, 2^1283909460 is an apocalyptic number.

1283909460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283909460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878871680).

1283909460 is an abundant number, since it is smaller than the sum of its proper divisors (2473833900).

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

1283909460 is a wasteful number, since it uses less digits than its factorization.

1283909460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7745 (or 7743 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1283909460 is about 35831.6823495632. The cubic root of 1283909460 is about 1086.8713301306.

The spelling of 1283909460 in words is "one billion, two hundred eighty-three million, nine hundred nine thousand, four hundred sixty".