1283632 has 40 divisors (see below), whose sum is σ = 2899616. Its totient is φ = 539136.

The previous prime is 1283603. The next prime is 1283677. The reversal of 1283632 is 2363821.

It is a super-2 number, since 2×1283632² = 3295422222848, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1283597 and 1283606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8098 + ... + 8254.

2^1283632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449808).

1283632 is an abundant number, since it is smaller than the sum of its proper divisors (1615984).

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

1283632 is a wasteful number, since it uses less digits than its factorization.

1283632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 239 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1283632 is about 1132.9748452636. The cubic root of 1283632 is about 108.6793031503.

The spelling of 1283632 in words is "one million, two hundred eighty-three thousand, six hundred thirty-two".