1340630 has 16 divisors (see below), whose sum is σ = 2445120. Its totient is φ = 529152.

The previous prime is 1340627. The next prime is 1340639. The reversal of 1340630 is 360431.

It is a junction number, because it is equal to n+sod(n) for n = 1340599 and 1340608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340639) 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 7 ways as a sum of consecutive naturals, for example, 59 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (152820).

2^1340630 is an apocalyptic number.

1340630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340630 is a deficient number, since it is larger than the sum of its proper divisors (1104490).

1340630 is a wasteful number, since it uses less digits than its factorization.

1340630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1340630 is about 1157.8557768565. The cubic root of 1340630 is about 110.2646520120.

The spelling of 1340630 in words is "one million, three hundred forty thousand, six hundred thirty".