1248349788 has 72 divisors (see below), whose sum is σ = 3722700800. Its totient is φ = 345163680.

The previous prime is 1248349787. The next prime is 1248349841. The reversal of 1248349788 is 8879438421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248349787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72088 + ... + 87711.

Almost surely, 2^1248349788 is an apocalyptic number.

1248349788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1248349788 is an abundant number, since it is smaller than the sum of its proper divisors (2474351012).

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

1248349788 is a wasteful number, since it uses less digits than its factorization.

1248349788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159847 (or 159842 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 1248349788 is about 35331.9938299553. The cubic root of 1248349788 is about 1076.7430997294.

The spelling of 1248349788 in words is "one billion, two hundred forty-eight million, three hundred forty-nine thousand, seven hundred eighty-eight".