340889473 has 8 divisors (see below), whose sum is σ = 353205288. Its totient is φ = 328737024.

The previous prime is 340889453. The next prime is 340889489. The reversal of 340889473 is 374988043.

It can be written as a sum of positive squares in 4 ways, for example, as 94148209 + 246741264 = 9703^2 + 15708^2 .

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 340889473 - 2⁵ = 340889441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340889453) 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, 36586 + ... + 44947.

It is an arithmetic number, because the mean of its divisors is an integer number (44150661).

Almost surely, 2^340889473 is an apocalyptic number.

It is an amenable number.

340889473 is a deficient number, since it is larger than the sum of its proper divisors (12315815).

340889473 is a wasteful number, since it uses less digits than its factorization.

340889473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81683.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 340889473 is about 18463.1923837672. The cubic root of 340889473 is about 698.5613124844.

The spelling of 340889473 in words is "three hundred forty million, eight hundred eighty-nine thousand, four hundred seventy-three".