1340539736 has 8 divisors (see below), whose sum is σ = 2513512020. Its totient is φ = 670269864.

The previous prime is 1340539729. The next prime is 1340539787. The reversal of 1340539736 is 6379350431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1340539693 and 1340539702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83783726 + ... + 83783741.

Almost surely, 2^1340539736 is an apocalyptic number.

It is an amenable number.

1340539736 is a deficient number, since it is larger than the sum of its proper divisors (1172972284).

1340539736 is a wasteful number, since it uses less digits than its factorization.

1340539736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167567473 (or 167567469 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 1340539736 is about 36613.3819251923. The cubic root of 1340539736 is about 1102.6217726709.

The spelling of 1340539736 in words is "one billion, three hundred forty million, five hundred thirty-nine thousand, seven hundred thirty-six".