1340706156 has 96 divisors (see below), whose sum is σ = 3501066240. Its totient is φ = 397123584.

The previous prime is 1340706149. The next prime is 1340706181. The reversal of 1340706156 is 6516070431.

It is a super-3 number, since 3×1340706156³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368860 + ... + 372476.

It is an arithmetic number, because the mean of its divisors is an integer number (36469440).

Almost surely, 2^1340706156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340706156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750533120).

1340706156 is an abundant number, since it is smaller than the sum of its proper divisors (2160360084).

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

1340706156 is a wasteful number, since it uses less digits than its factorization.

1340706156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1340706156 is about 36615.6545209832. The cubic root of 1340706156 is about 1102.6673987516.

Adding to 1340706156 its reverse (6516070431), we get a palindrome (7856776587).

The spelling of 1340706156 in words is "one billion, three hundred forty million, seven hundred six thousand, one hundred fifty-six".