340442315261 has 8 divisors (see below), whose sum is σ = 341616379104. Its totient is φ = 339268674960.

The previous prime is 340442315179. The next prime is 340442315303. The reversal of 340442315261 is 162513244043.

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 340442315261 - 2²⁶ = 340375206397 is a prime.

It is a super-2 number, since 2×340442315261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340442318261) 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, 1548926 + ... + 1755008.

It is an arithmetic number, because the mean of its divisors is an integer number (42702047388).

Almost surely, 2^340442315261 is an apocalyptic number.

It is an amenable number.

340442315261 is a deficient number, since it is larger than the sum of its proper divisors (1174063843).

340442315261 is a wasteful number, since it uses less digits than its factorization.

340442315261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211771.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 340442315261 in words is "three hundred forty billion, four hundred forty-two million, three hundred fifteen thousand, two hundred sixty-one".