1283269680 has 480 divisors, whose sum is σ = 5459650560. Its totient is φ = 262379520.

The previous prime is 1283269657. The next prime is 1283269681. The reversal of 1283269680 is 869623821.

1283269680 = 247³ + 248³ + ... + 306³.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1283269681) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 4379614 + ... + 4379906.

It is an arithmetic number, because the mean of its divisors is an integer number (11374272).

Almost surely, 2^1283269680 is an apocalyptic number.

1283269680 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 1283269680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2729825280).

1283269680 is an abundant number, since it is smaller than the sum of its proper divisors (4176380880).

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

1283269680 is a wasteful number, since it uses less digits than its factorization.

1283269680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1283269680 is about 35822.7536630003. The cubic root of 1283269680 is about 1086.6907685740.

The spelling of 1283269680 in words is "one billion, two hundred eighty-three million, two hundred sixty-nine thousand, six hundred eighty".