1340679488 has 14 divisors (see below), whose sum is σ = 2660410986. Its totient is φ = 670339712.

The previous prime is 1340679481. The next prime is 1340679491. The reversal of 1340679488 is 8849760431.

It can be written as a sum of positive squares in only one way, i.e., 774620224 + 566059264 = 27832^2 + 23792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340679481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10473995 + ... + 10474122.

Almost surely, 2^1340679488 is an apocalyptic number.

It is an amenable number.

1340679488 is a deficient number, since it is larger than the sum of its proper divisors (1319731498).

1340679488 is an equidigital number, since it uses as much as digits as its factorization.

1340679488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20948129 (or 20948119 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1340679488 is about 36615.2903579912. The cubic root of 1340679488 is about 1102.6600876469.

The spelling of 1340679488 in words is "one billion, three hundred forty million, six hundred seventy-nine thousand, four hundred eighty-eight".