3440402261 has 8 divisors (see below), whose sum is σ = 3596861760. Its totient is φ = 3284515872.

The previous prime is 3440402249. The next prime is 3440402267. The reversal of 3440402261 is 1622040443.

3440402261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3440402261 - 2¹⁴ = 3440385877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3440402261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440402267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130976 + ... + 155033.

It is an arithmetic number, because the mean of its divisors is an integer number (449607720).

Almost surely, 2^3440402261 is an apocalyptic number.

It is an amenable number.

3440402261 is a deficient number, since it is larger than the sum of its proper divisors (156459499).

3440402261 is a wasteful number, since it uses less digits than its factorization.

3440402261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286555.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 3440402261 is about 58654.9423407781. The cubic root of 3440402261 is about 1509.6273016997.

The spelling of 3440402261 in words is "three billion, four hundred forty million, four hundred two thousand, two hundred sixty-one".