1273785088 has 72 divisors (see below), whose sum is σ = 2642401440. Its totient is φ = 612311040.

The previous prime is 1273785077. The next prime is 1273785109. The reversal of 1273785088 is 8805873721.

It is a happy number.

It is a super-2 number, since 2×1273785088² = 3245056900822335488, which contains 22 as substring.

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, 842253 + ... + 843763.

It is an arithmetic number, because the mean of its divisors is an integer number (36700020).

Almost surely, 2^1273785088 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 1273785088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321200720).

1273785088 is an abundant number, since it is smaller than the sum of its proper divisors (1368616352).

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

1273785088 is an equidigital number, since it uses as much as digits as its factorization.

1273785088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 49.

The square root of 1273785088 is about 35690.1259174019. The cubic root of 1273785088 is about 1084.0069170730.

The spelling of 1273785088 in words is "one billion, two hundred seventy-three million, seven hundred eighty-five thousand, eighty-eight".