1340454 has 16 divisors (see below), whose sum is σ = 2746800. Its totient is φ = 435840.

The previous prime is 1340447. The next prime is 1340459. The reversal of 1340454 is 4540431.

It is a super-2 number, since 2×1340454² = 3593633852232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 2970.

It is an arithmetic number, because the mean of its divisors is an integer number (171675).

2^1340454 is an apocalyptic number.

1340454 is an abundant number, since it is smaller than the sum of its proper divisors (1406346).

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

1340454 is a wasteful number, since it uses less digits than its factorization.

1340454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1340454 is about 1157.7797718046. The cubic root of 1340454 is about 110.2598265623.

Adding to 1340454 its reverse (4540431), we get a palindrome (5880885).

The spelling of 1340454 in words is "one million, three hundred forty thousand, four hundred fifty-four".