1283969232 has 480 divisors, whose sum is σ = 4853022720. Its totient is φ = 319127040.

The previous prime is 1283969231. The next prime is 1283969249. The reversal of 1283969232 is 2329693821.

It is a happy number.

1283969232 is a `hidden beast` number, since 1 + 28 + 396 + 9 + 232 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283969231) 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, 6722257 + ... + 6722447.

It is an arithmetic number, because the mean of its divisors is an integer number (10110464).

Almost surely, 2^1283969232 is an apocalyptic number.

1283969232 is a gapful number since it is divisible by the number (12) 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 1283969232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426511360).

1283969232 is an abundant number, since it is smaller than the sum of its proper divisors (3569053488).

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

1283969232 is a wasteful number, since it uses less digits than its factorization.

1283969232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 235 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1283969232 is about 35832.5164061917. The cubic root of 1283969232 is about 1086.8881961862. Note that the first 3 decimals are identical.

The spelling of 1283969232 in words is "one billion, two hundred eighty-three million, nine hundred sixty-nine thousand, two hundred thirty-two".