788253440 has 144 divisors (see below), whose sum is σ = 2054857728. Its totient is φ = 287981568.

The previous prime is 788253409. The next prime is 788253457. The reversal of 788253440 is 44352887.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2113094 + ... + 2113466.

Almost surely, 2^788253440 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 788253440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027428864).

788253440 is an abundant number, since it is smaller than the sum of its proper divisors (1266604288).

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

788253440 is a wasteful number, since it uses less digits than its factorization.

788253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 788253440 is about 28075.8515454118. The cubic root of 788253440 is about 923.7517870547.

The spelling of 788253440 in words is "seven hundred eighty-eight million, two hundred fifty-three thousand, four hundred forty".