1340919520 has 48 divisors (see below), whose sum is σ = 3172393728. Its totient is φ = 535610880.

The previous prime is 1340919499. The next prime is 1340919551. The reversal of 1340919520 is 259190431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115585 + ... + 126655.

It is an arithmetic number, because the mean of its divisors is an integer number (66091536).

Almost surely, 2^1340919520 is an apocalyptic number.

1340919520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340919520 is an abundant number, since it is smaller than the sum of its proper divisors (1831474208).

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

1340919520 is a wasteful number, since it uses less digits than its factorization.

1340919520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843 (or 11835 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1340919520 is about 36618.5679676308. The cubic root of 1340919520 is about 1102.7258895816.

The spelling of 1340919520 in words is "one billion, three hundred forty million, nine hundred nineteen thousand, five hundred twenty".