1348505240 has 32 divisors (see below), whose sum is σ = 3193830000. Its totient is φ = 511012224.

The previous prime is 1348505189. The next prime is 1348505243. The reversal of 1348505240 is 425058431.

It is a junction number, because it is equal to n+sod(n) for n = 1348505197 and 1348505206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348505243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886415 + ... + 887934.

Almost surely, 2^1348505240 is an apocalyptic number.

1348505240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1348505240 is an abundant number, since it is smaller than the sum of its proper divisors (1845324760).

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

1348505240 is a wasteful number, since it uses less digits than its factorization.

1348505240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774379 (or 1774375 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1348505240 is about 36721.9994009041. Note that the first 3 decimals coincide. The cubic root of 1348505240 is about 1104.8013920674.

The spelling of 1348505240 in words is "one billion, three hundred forty-eight million, five hundred five thousand, two hundred forty".