1340796690 has 48 divisors (see below), whose sum is σ = 3530217600. Its totient is φ = 353018016.

The previous prime is 1340796679. The next prime is 1340796727. The reversal of 1340796690 is 966970431.

It is a super-2 number, since 2×1340796690² = 3595471527829912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87180 + ... + 101399.

It is an arithmetic number, because the mean of its divisors is an integer number (73546200).

Almost surely, 2^1340796690 is an apocalyptic number.

1340796690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340796690 is an abundant number, since it is smaller than the sum of its proper divisors (2189420910).

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

1340796690 is a wasteful number, since it uses less digits than its factorization.

1340796690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188671 (or 188668 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 1340796690 is about 36616.8907746138. The cubic root of 1340796690 is about 1102.6922181705.

The spelling of 1340796690 in words is "one billion, three hundred forty million, seven hundred ninety-six thousand, six hundred ninety".