1340973696 has 128 divisors (see below), whose sum is σ = 3709992960. Its totient is φ = 428682240.

The previous prime is 1340973691. The next prime is 1340973707. The reversal of 1340973696 is 6963790431.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1340973691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1511365 + ... + 1512251.

It is an arithmetic number, because the mean of its divisors is an integer number (28984320).

Almost surely, 2^1340973696 is an apocalyptic number.

1340973696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340973696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854996480).

1340973696 is an abundant number, since it is smaller than the sum of its proper divisors (2369019264).

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

1340973696 is a wasteful number, since it uses less digits than its factorization.

1340973696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 1340973696 is about 36619.3076941659. The cubic root of 1340973696 is about 1102.7407402052.

The spelling of 1340973696 in words is "one billion, three hundred forty million, nine hundred seventy-three thousand, six hundred ninety-six".