1273793472 has 448 divisors, whose sum is σ = 4577689600. Its totient is φ = 339655680.

The previous prime is 1273793407. The next prime is 1273793501. The reversal of 1273793472 is 2743973721.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16123929 + ... + 16124007.

Almost surely, 2^1273793472 is an apocalyptic number.

1273793472 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 1273793472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288844800).

1273793472 is an abundant number, since it is smaller than the sum of its proper divisors (3303896128).

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

1273793472 is a wasteful number, since it uses less digits than its factorization.

1273793472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 165 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 1273793472 is about 35690.2433726642. The cubic root of 1273793472 is about 1084.0092953638.

The spelling of 1273793472 in words is "one billion, two hundred seventy-three million, seven hundred ninety-three thousand, four hundred seventy-two".