1253788788 has 96 divisors (see below), whose sum is σ = 3520290816. Its totient is φ = 339558912.

The previous prime is 1253788751. The next prime is 1253788793. The reversal of 1253788788 is 8878873521.

1253788788 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215445 + ... + 221187.

It is an arithmetic number, because the mean of its divisors is an integer number (36669696).

Almost surely, 2^1253788788 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 1253788788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760145408).

1253788788 is an abundant number, since it is smaller than the sum of its proper divisors (2266502028).

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

1253788788 is a wasteful number, since it uses less digits than its factorization.

1253788788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893 (or 5891 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 57.

The square root of 1253788788 is about 35408.8800726597. The cubic root of 1253788788 is about 1078.3046067537.

The spelling of 1253788788 in words is "one billion, two hundred fifty-three million, seven hundred eighty-eight thousand, seven hundred eighty-eight".