1340955 has 80 divisors (see below), whose sum is σ = 3066624. Its totient is φ = 544320.

The previous prime is 1340947. The next prime is 1340959. The reversal of 1340955 is 5590431.

It is not a de Polignac number, because 1340955 - 2³ = 1340947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1340959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 31164 + ... + 31206.

2^1340955 is an apocalyptic number.

1340955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1340955 is an abundant number, since it is smaller than the sum of its proper divisors (1725669).

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

1340955 is a wasteful number, since it uses less digits than its factorization.

1340955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1340955 is about 1157.9961139831. The cubic root of 1340955 is about 110.2735615338.

The spelling of 1340955 in words is "one million, three hundred forty thousand, nine hundred fifty-five".