340540417 has 8 divisors (see below), whose sum is σ = 402609600. Its totient is φ = 281826384.

The previous prime is 340540399. The next prime is 340540463. The reversal of 340540417 is 714045043.

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

It is not a de Polignac number, because 340540417 - 2¹¹ = 340538369 is a prime.

It is a super-2 number, since 2×340540417² = 231935551221067778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340540517) 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, 838567 + ... + 838972.

It is an arithmetic number, because the mean of its divisors is an integer number (50326200).

Almost surely, 2^340540417 is an apocalyptic number.

It is an amenable number.

340540417 is a deficient number, since it is larger than the sum of its proper divisors (62069183).

340540417 is a wasteful number, since it uses less digits than its factorization.

340540417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677575.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 340540417 is about 18453.7372095736. The cubic root of 340540417 is about 698.3227989188.

The spelling of 340540417 in words is "three hundred forty million, five hundred forty thousand, four hundred seventeen".