1308740 has 12 divisors (see below), whose sum is σ = 2748396. Its totient is φ = 523488.

The previous prime is 1308737. The next prime is 1308757. The reversal of 1308740 is 478031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 835396 = 688^2 + 914^2 .

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, 32699 + ... + 32738.

It is an arithmetic number, because the mean of its divisors is an integer number (229033).

2^1308740 is an apocalyptic number.

1308740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308740 is an abundant number, since it is smaller than the sum of its proper divisors (1439656).

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

1308740 is a wasteful number, since it uses less digits than its factorization.

1308740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65446 (or 65444 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1308740 is about 1144.0017482504. The cubic root of 1308740 is about 109.3833261689.

It can be divided in two parts, 1308 and 740, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1308740 in words is "one million, three hundred eight thousand, seven hundred forty".