1282823616 has 56 divisors (see below), whose sum is σ = 3425332240. Its totient is φ = 423677952.

The previous prime is 1282823611. The next prime is 1282823623. The reversal of 1282823616 is 6163282821.

It is a super-3 number, since 3×1282823616³ (a number of 28 digits) contains 333 as substring.

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 (1282823611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9721 + ... + 51576.

Almost surely, 2^1282823616 is an apocalyptic number.

1282823616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1282823616 is an abundant number, since it is smaller than the sum of its proper divisors (2142508624).

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

1282823616 is a wasteful number, since it uses less digits than its factorization.

1282823616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61421 (or 61411 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 1282823616 is about 35816.5271348298. The cubic root of 1282823616 is about 1086.5648428978.

The spelling of 1282823616 in words is "one billion, two hundred eighty-two million, eight hundred twenty-three thousand, six hundred sixteen".