1340155120 has 40 divisors (see below), whose sum is σ = 3279857040. Its totient is φ = 507847680.

The previous prime is 1340155111. The next prime is 1340155153. The reversal of 1340155120 is 215510431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1340155091 and 1340155100.

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, 439321 + ... + 442360.

It is an arithmetic number, because the mean of its divisors is an integer number (81996426).

Almost surely, 2^1340155120 is an apocalyptic number.

1340155120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340155120 is an abundant number, since it is smaller than the sum of its proper divisors (1939701920).

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

1340155120 is a wasteful number, since it uses less digits than its factorization.

1340155120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881713 (or 881707 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1340155120 is about 36608.1291518701. The cubic root of 1340155120 is about 1102.5163110350.

Adding to 1340155120 its reverse (215510431), we get a palindrome (1555665551).

The spelling of 1340155120 in words is "one billion, three hundred forty million, one hundred fifty-five thousand, one hundred twenty".