1310940 has 36 divisors (see below), whose sum is σ = 3977064. Its totient is φ = 349536.

The previous prime is 1310927. The next prime is 1310963. The reversal of 1310940 is 490131.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3462 + ... + 3821.

It is an arithmetic number, because the mean of its divisors is an integer number (110474).

2^1310940 is an apocalyptic number.

1310940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310940 is an abundant number, since it is smaller than the sum of its proper divisors (2666124).

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

1310940 is a wasteful number, since it uses less digits than its factorization.

1310940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298 (or 7293 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1310940 is about 1144.9628814944. The cubic root of 1310940 is about 109.4445832055. Note that the first 3 decimals are identical.

The spelling of 1310940 in words is "one million, three hundred ten thousand, nine hundred forty".