1340470 has 8 divisors (see below), whose sum is σ = 2412864. Its totient is φ = 536184.

The previous prime is 1340459. The next prime is 1340477. The reversal of 1340470 is 740431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67014 + ... + 67033.

It is an arithmetic number, because the mean of its divisors is an integer number (301608).

2^1340470 is an apocalyptic number.

1340470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340470 is a deficient number, since it is larger than the sum of its proper divisors (1072394).

1340470 is a wasteful number, since it uses less digits than its factorization.

1340470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134054.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1340470 is about 1157.7866815610. The cubic root of 1340470 is about 110.2602652570.

The spelling of 1340470 in words is "one million, three hundred forty thousand, four hundred seventy".