1340539737 has 16 divisors (see below), whose sum is σ = 1896284160. Its totient is φ = 839985552.

The previous prime is 1340539729. The next prime is 1340539787. The reversal of 1340539737 is 7379350431.

It is not a de Polignac number, because 1340539737 - 2³ = 1340539729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340539787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85353 + ... + 99830.

It is an arithmetic number, because the mean of its divisors is an integer number (118517760).

Almost surely, 2^1340539737 is an apocalyptic number.

It is an amenable number.

1340539737 is a deficient number, since it is larger than the sum of its proper divisors (555744423).

1340539737 is a wasteful number, since it uses less digits than its factorization.

1340539737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185332.

The product of its (nonzero) digits is 238140, while the sum is 42.

The square root of 1340539737 is about 36613.3819388485. The cubic root of 1340539737 is about 1102.6217729451.

The spelling of 1340539737 in words is "one billion, three hundred forty million, five hundred thirty-nine thousand, seven hundred thirty-seven".