340648181 has 8 divisors (see below), whose sum is σ = 363763200. Its totient is φ = 318291120.

The previous prime is 340648157. The next prime is 340648183. The reversal of 340648181 is 181846043.

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 340648181 - 2¹⁸ = 340386037 is a prime.

It is a super-2 number, since 2×340648181² = 232082366437217522, which 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 (340648183) 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, 188561 + ... + 190358.

It is an arithmetic number, because the mean of its divisors is an integer number (45470400).

Almost surely, 2^340648181 is an apocalyptic number.

340648181 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

340648181 is a deficient number, since it is larger than the sum of its proper divisors (23115019).

340648181 is a wasteful number, since it uses less digits than its factorization.

340648181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378979.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 340648181 is about 18456.6568207788. The cubic root of 340648181 is about 698.3964525565.

The spelling of 340648181 in words is "three hundred forty million, six hundred forty-eight thousand, one hundred eighty-one".