1340471 has 8 divisors (see below), whose sum is σ = 1509888. Its totient is φ = 1179000.

The previous prime is 1340459. The next prime is 1340477. The reversal of 1340471 is 1740431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340471 - 2⁶ = 1340407 is a prime.

It is a super-3 number, since 3×1340471³ = 7225926224115921333, which contains 333 as substring.

It is a Duffinian number.

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 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, 1625 + ... + 2306.

It is an arithmetic number, because the mean of its divisors is an integer number (188736).

2^1340471 is an apocalyptic number.

1340471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1340471 is a deficient number, since it is larger than the sum of its proper divisors (169417).

1340471 is a wasteful number, since it uses less digits than its factorization.

1340471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1340471 is about 1157.7871134194. The cubic root of 1340471 is about 110.2602926753.

The spelling of 1340471 in words is "one million, three hundred forty thousand, four hundred seventy-one".