1248866940 has 48 divisors (see below), whose sum is σ = 3499171200. Its totient is φ = 332808000.

The previous prime is 1248866923. The next prime is 1248866947. The reversal of 1248866940 is 496688421.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1248866940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248866947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95815 + ... + 108065.

It is an arithmetic number, because the mean of its divisors is an integer number (72899400).

Almost surely, 2^1248866940 is an apocalyptic number.

1248866940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1248866940 is an abundant number, since it is smaller than the sum of its proper divisors (2250304260).

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

1248866940 is a wasteful number, since it uses less digits than its factorization.

1248866940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962 (or 13960 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1248866940 is about 35339.3115382855. The cubic root of 1248866940 is about 1076.8917661200.

The spelling of 1248866940 in words is "one billion, two hundred forty-eight million, eight hundred sixty-six thousand, nine hundred forty".