1282669472 has 72 divisors (see below), whose sum is σ = 2949431940. Its totient is φ = 547491840.

The previous prime is 1282669469. The next prime is 1282669481. The reversal of 1282669472 is 2749662821.

It can be written as a sum of positive squares in 2 ways, for example, as 1278491536 + 4177936 = 35756^2 + 2044^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420272 + ... + 423312.

Almost surely, 2^1282669472 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 1282669472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474715970).

1282669472 is an abundant number, since it is smaller than the sum of its proper divisors (1666762468).

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

1282669472 is a wasteful number, since it uses less digits than its factorization.

1282669472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334 (or 3319 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 1282669472 is about 35814.3752144303. The cubic root of 1282669472 is about 1086.5213206349.

The spelling of 1282669472 in words is "one billion, two hundred eighty-two million, six hundred sixty-nine thousand, four hundred seventy-two".