1340454130 has 32 divisors (see below), whose sum is σ = 2480843376. Its totient is φ = 521097984.

The previous prime is 1340454127. The next prime is 1340454149. The reversal of 1340454130 is 314540431.

It can be written as a sum of positive squares in 8 ways, for example, as 585688401 + 754765729 = 24201^2 + 27473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340454095 and 1340454104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471072 + ... + 473908.

Almost surely, 2^1340454130 is an apocalyptic number.

1340454130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340454130 is a deficient number, since it is larger than the sum of its proper divisors (1140389246).

1340454130 is a wasteful number, since it uses less digits than its factorization.

1340454130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1340454130 is about 36612.2128530904. The cubic root of 1340454130 is about 1102.5983012670.

Adding to 1340454130 its reverse (314540431), we get a palindrome (1654994561).

The spelling of 1340454130 in words is "one billion, three hundred forty million, four hundred fifty-four thousand, one hundred thirty".