1381264460 has 24 divisors (see below), whose sum is σ = 2901899616. Its totient is φ = 552268800.

The previous prime is 1381264439. The next prime is 1381264481. The reversal of 1381264460 is 644621831.

It is an interprime number because it is at equal distance from previous prime (1381264439) and next prime (1381264481).

It is a self number, because there is not a number n which added to its sum of digits gives 1381264460.

It is an unprimeable number.

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, 37484 + ... + 64556.

It is an arithmetic number, because the mean of its divisors is an integer number (120912484).

Almost surely, 2^1381264460 is an apocalyptic number.

1381264460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381264460 is an abundant number, since it is smaller than the sum of its proper divisors (1520635156).

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

1381264460 is a wasteful number, since it uses less digits than its factorization.

1381264460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29633 (or 29631 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1381264460 is about 37165.3664047591. The cubic root of 1381264460 is about 1113.6762185850.

The spelling of 1381264460 in words is "one billion, three hundred eighty-one million, two hundred sixty-four thousand, four hundred sixty".