1273472808 has 64 divisors (see below), whose sum is σ = 3375275520. Its totient is φ = 399686400.

The previous prime is 1273472807. The next prime is 1273472831. The reversal of 1273472808 is 8082743721.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1273472808.

It is not an unprimeable number, because it can be changed into a prime (1273472803) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4398 + ... + 50658.

It is an arithmetic number, because the mean of its divisors is an integer number (52738680).

Almost surely, 2^1273472808 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 1273472808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687637760).

1273472808 is an abundant number, since it is smaller than the sum of its proper divisors (2101802712).

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

1273472808 is a wasteful number, since it uses less digits than its factorization.

1273472808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46338 (or 46334 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 1273472808 is about 35685.7507697400. The cubic root of 1273472808 is about 1083.9183251145.

The spelling of 1273472808 in words is "one billion, two hundred seventy-three million, four hundred seventy-two thousand, eight hundred eight".