1340994 has 16 divisors (see below), whose sum is σ = 2839968. Its totient is φ = 420672.

The previous prime is 1340981. The next prime is 1341007. The reversal of 1340994 is 4990431.

It is an interprime number because it is at equal distance from previous prime (1340981) and next prime (1341007).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6472 + ... + 6675.

It is an arithmetic number, because the mean of its divisors is an integer number (177498).

2^1340994 is an apocalyptic number.

1340994 is an abundant number, since it is smaller than the sum of its proper divisors (1498974).

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

1340994 is a wasteful number, since it uses less digits than its factorization.

1340994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13169.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1340994 is about 1158.0129532954. The cubic root of 1340994 is about 110.2746305797.

Subtracting from 1340994 its sum of digits (30), we obtain a square (1340964 = 1158²).

The spelling of 1340994 in words is "one million, three hundred forty thousand, nine hundred ninety-four".