1340522120 has 64 divisors (see below), whose sum is σ = 3451956480. Its totient is φ = 458954496.

The previous prime is 1340522093. The next prime is 1340522137. The reversal of 1340522120 is 212250431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1340522092 and 1340522101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220157 + ... + 226163.

It is an arithmetic number, because the mean of its divisors is an integer number (53936820).

Almost surely, 2^1340522120 is an apocalyptic number.

1340522120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340522120 is an abundant number, since it is smaller than the sum of its proper divisors (2111434360).

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

1340522120 is a wasteful number, since it uses less digits than its factorization.

1340522120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822 (or 6818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1340522120 is about 36613.1413566222. The cubic root of 1340522120 is about 1102.6169428078.

Adding to 1340522120 its reverse (212250431), we get a palindrome (1552772551).

The spelling of 1340522120 in words is "one billion, three hundred forty million, five hundred twenty-two thousand, one hundred twenty".