1248939894 has 32 divisors (see below), whose sum is σ = 2524273920. Its totient is φ = 411937632.

The previous prime is 1248939889. The next prime is 1248939899. The reversal of 1248939894 is 4989398421.

It is an interprime number because it is at equal distance from previous prime (1248939889) and next prime (1248939899).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248939899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226737 + ... + 232179.

It is an arithmetic number, because the mean of its divisors is an integer number (78883560).

Almost surely, 2^1248939894 is an apocalyptic number.

1248939894 is an abundant number, since it is smaller than the sum of its proper divisors (1275334026).

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

1248939894 is a wasteful number, since it uses less digits than its factorization.

1248939894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844.

The product of its digits is 4478976, while the sum is 57.

The square root of 1248939894 is about 35340.3437164949. The cubic root of 1248939894 is about 1076.9127350025.

The spelling of 1248939894 in words is "one billion, two hundred forty-eight million, nine hundred thirty-nine thousand, eight hundred ninety-four".