1340637744 has 40 divisors (see below), whose sum is σ = 3468881152. Its totient is φ = 446160960.

The previous prime is 1340637737. The next prime is 1340637817. The reversal of 1340637744 is 4477360431.

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, 8157 + ... + 52419.

Almost surely, 2^1340637744 is an apocalyptic number.

It is an amenable number.

1340637744 is an abundant number, since it is smaller than the sum of its proper divisors (2128243408).

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

1340637744 is a wasteful number, since it uses less digits than its factorization.

1340637744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44905 (or 44899 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 1340637744 is about 36614.7203184730. The cubic root of 1340637744 is about 1102.6486432212.

The spelling of 1340637744 in words is "one billion, three hundred forty million, six hundred thirty-seven thousand, seven hundred forty-four".