1308140 has 12 divisors (see below), whose sum is σ = 2747136. Its totient is φ = 523248.

The previous prime is 1308137. The next prime is 1308157. The reversal of 1308140 is 418031.

It is a happy number.

It is a super-2 number, since 2×1308140² = 3422460519200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32684 + ... + 32723.

It is an arithmetic number, because the mean of its divisors is an integer number (228928).

2^1308140 is an apocalyptic number.

1308140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308140 is an abundant number, since it is smaller than the sum of its proper divisors (1438996).

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

1308140 is a wasteful number, since it uses less digits than its factorization.

1308140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65416 (or 65414 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1308140 is about 1143.7394808259. The cubic root of 1308140 is about 109.3666077915.

The spelling of 1308140 in words is "one million, three hundred eight thousand, one hundred forty".