1310988 has 24 divisors (see below), whose sum is σ = 3496192. Its totient is φ = 374544.

The previous prime is 1310987. The next prime is 1310993. The reversal of 1310988 is 8890131.

It is a super-2 number, since 2×1310988² = 3437379072288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1310987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7720 + ... + 7887.

2^1310988 is an apocalyptic number.

It is an amenable number.

1310988 is an abundant number, since it is smaller than the sum of its proper divisors (2185204).

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

1310988 is a wasteful number, since it uses less digits than its factorization.

1310988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15621 (or 15619 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1310988 is about 1144.9838426808. The cubic root of 1310988 is about 109.4459189585.

The spelling of 1310988 in words is "one million, three hundred ten thousand, nine hundred eighty-eight".