1340733408 has 48 divisors (see below), whose sum is σ = 4022202240. Its totient is φ = 383066496.

The previous prime is 1340733397. The next prime is 1340733419. The reversal of 1340733408 is 8043370431.

It is an interprime number because it is at equal distance from previous prime (1340733397) and next prime (1340733419).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996898 + ... + 998241.

It is an arithmetic number, because the mean of its divisors is an integer number (83795880).

Almost surely, 2^1340733408 is an apocalyptic number.

It is an amenable number.

1340733408 is an abundant number, since it is smaller than the sum of its proper divisors (2681468832).

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

1340733408 is a wasteful number, since it uses less digits than its factorization.

1340733408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995159 (or 1995151 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 1340733408 is about 36616.0266550045. The cubic root of 1340733408 is about 1102.6748698613.

The spelling of 1340733408 in words is "one billion, three hundred forty million, seven hundred thirty-three thousand, four hundred eight".