1340888485 has 4 divisors (see below), whose sum is σ = 1609066188. Its totient is φ = 1072710784.

The previous prime is 1340888453. The next prime is 1340888509. The reversal of 1340888485 is 5848880431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 516107524 + 824780961 = 22718^2 + 28719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340888485 - 2⁵ = 1340888453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134088844 + ... + 134088853.

It is an arithmetic number, because the mean of its divisors is an integer number (402266547).

Almost surely, 2^1340888485 is an apocalyptic number.

It is an amenable number.

1340888485 is a deficient number, since it is larger than the sum of its proper divisors (268177703).

1340888485 is an equidigital number, since it uses as much as digits as its factorization.

1340888485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268177702.

The product of its (nonzero) digits is 983040, while the sum is 49.

The square root of 1340888485 is about 36618.1442047518. The cubic root of 1340888485 is about 1102.7173821453.

The spelling of 1340888485 in words is "one billion, three hundred forty million, eight hundred eighty-eight thousand, four hundred eighty-five".