340404570261 has 24 divisors (see below), whose sum is σ = 586369779840. Its totient is φ = 186059640096.

The previous prime is 340404570239. The next prime is 340404570283. The reversal of 340404570261 is 162075404043.

340404570261 is a `hidden beast` number, since 3 + 40 + 40 + 4 + 570 + 2 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (340404570239) and next prime (340404570283).

It is not a de Polignac number, because 340404570261 - 2¹⁰ = 340404569237 is a prime.

It is a super-3 number, since 3×340404570261³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340404570211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117460446 + ... + 117463343.

It is an arithmetic number, because the mean of its divisors is an integer number (24432074160).

Almost surely, 2^340404570261 is an apocalyptic number.

It is an amenable number.

340404570261 is a deficient number, since it is larger than the sum of its proper divisors (245965209579).

340404570261 is a wasteful number, since it uses less digits than its factorization.

340404570261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234923825 (or 234923822 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 340404570261 in words is "three hundred forty billion, four hundred four million, five hundred seventy thousand, two hundred sixty-one".