340881566 has 8 divisors (see below), whose sum is σ = 512840640. Its totient is φ = 169934688.

The previous prime is 340881559. The next prime is 340881577. The reversal of 340881566 is 665188043.

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

It is a super-2 number, since 2×340881566² = 232400484077224712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252206 + ... + 253553.

It is an arithmetic number, because the mean of its divisors is an integer number (64105080).

Almost surely, 2^340881566 is an apocalyptic number.

340881566 is a deficient number, since it is larger than the sum of its proper divisors (171959074).

340881566 is a wasteful number, since it uses less digits than its factorization.

340881566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506098.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 340881566 is about 18462.9782537921. The cubic root of 340881566 is about 698.5559113525. Note that the first 3 decimals are identical.

The spelling of 340881566 in words is "three hundred forty million, eight hundred eighty-one thousand, five hundred sixty-six".