1340004726 has 24 divisors (see below), whose sum is σ = 2944238544. Its totient is φ = 440376720.

The previous prime is 1340004661. The next prime is 1340004727. The reversal of 1340004726 is 6274000431.

It is a super-3 number, since 3×1340004726³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1340004726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340004727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522981 + ... + 525536.

It is an arithmetic number, because the mean of its divisors is an integer number (122676606).

Almost surely, 2^1340004726 is an apocalyptic number.

1340004726 is an abundant number, since it is smaller than the sum of its proper divisors (1604233818).

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

1340004726 is a wasteful number, since it uses less digits than its factorization.

1340004726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048596 (or 1048593 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1340004726 is about 36606.0749876301. The cubic root of 1340004726 is about 1102.4750675405.

The spelling of 1340004726 in words is "one billion, three hundred forty million, four thousand, seven hundred twenty-six".