1340670724 has 24 divisors (see below), whose sum is σ = 2380817880. Its totient is φ = 660489984.

The previous prime is 1340670719. The next prime is 1340670757. The reversal of 1340670724 is 4270760431.

It can be written as a sum of positive squares in 4 ways, for example, as 173765124 + 1166905600 = 13182^2 + 34160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1340670724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97882 + ... + 110734.

It is an arithmetic number, because the mean of its divisors is an integer number (99200745).

Almost surely, 2^1340670724 is an apocalyptic number.

It is an amenable number.

1340670724 is a deficient number, since it is larger than the sum of its proper divisors (1040147156).

1340670724 is a wasteful number, since it uses less digits than its factorization.

1340670724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13239 (or 13237 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 1340670724 is about 36615.1706810169. The cubic root of 1340670724 is about 1102.6576849513.

The spelling of 1340670724 in words is "one billion, three hundred forty million, six hundred seventy thousand, seven hundred twenty-four".