1248760992 has 48 divisors (see below), whose sum is σ = 3296153952. Its totient is φ = 413948160.

The previous prime is 1248760987. The next prime is 1248760999. The reversal of 1248760992 is 2990678421.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1248760999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18558 + ... + 53309.

It is an arithmetic number, because the mean of its divisors is an integer number (68669874).

Almost surely, 2^1248760992 is an apocalyptic number.

1248760992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1248760992 is an abundant number, since it is smaller than the sum of its proper divisors (2047392960).

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

1248760992 is a wasteful number, since it uses less digits than its factorization.

1248760992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72061 (or 72053 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1248760992 is about 35337.8124959653. The cubic root of 1248760992 is about 1076.8613124472.

The spelling of 1248760992 in words is "one billion, two hundred forty-eight million, seven hundred sixty thousand, nine hundred ninety-two".