1340340120 has 144 divisors (see below), whose sum is σ = 5067372960. Its totient is φ = 306359424.

The previous prime is 1340340119. The next prime is 1340340139. The reversal of 1340340120 is 210430431.

It is a super-2 number, since 2×1340340120² = 3593023274563228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1340340093 and 1340340102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20352 + ... + 55631.

It is an arithmetic number, because the mean of its divisors is an integer number (35190090).

Almost surely, 2^1340340120 is an apocalyptic number.

1340340120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340340120 is an abundant number, since it is smaller than the sum of its proper divisors (3727032840).

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

1340340120 is a wasteful number, since it uses less digits than its factorization.

1340340120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76014 (or 76000 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1340340120 is about 36610.6558258658. The cubic root of 1340340120 is about 1102.5670405190.

Adding to 1340340120 its reverse (210430431), we get a palindrome (1550770551).

The spelling of 1340340120 in words is "one billion, three hundred forty million, three hundred forty thousand, one hundred twenty".