1340963 has 16 divisors (see below), whose sum is σ = 1562400. Its totient is φ = 1140480.

The previous prime is 1340959. The next prime is 1340981. The reversal of 1340963 is 3690431.

It is a Cunningham number, because it is equal to 1158²-1.

It is a cyclic number.

It is not a de Polignac number, because 1340963 - 2² = 1340959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15023 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2^1340963 is an apocalyptic number.

1340963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1340963 is a deficient number, since it is larger than the sum of its proper divisors (221437).

1340963 is a wasteful number, since it uses less digits than its factorization.

1340963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1340963 is about 1157.9995682210. Note that the first 3 decimals coincide. The cubic root of 1340963 is about 110.2737808269.

The spelling of 1340963 in words is "one million, three hundred forty thousand, nine hundred sixty-three".