340425623 has 8 divisors (see below), whose sum is σ = 345074400. Its totient is φ = 335795328.

The previous prime is 340425619. The next prime is 340425643. The reversal of 340425623 is 326524043.

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 340425623 - 2² = 340425619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340425643) 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, 34715 + ... + 43427.

It is an arithmetic number, because the mean of its divisors is an integer number (43134300).

Almost surely, 2^340425623 is an apocalyptic number.

340425623 is a deficient number, since it is larger than the sum of its proper divisors (4648777).

340425623 is an equidigital number, since it uses as much as digits as its factorization.

340425623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 340425623 is about 18450.6266289251. The cubic root of 340425623 is about 698.2443233816.

Adding to 340425623 its reverse (326524043), we get a palindrome (666949666).

The spelling of 340425623 in words is "three hundred forty million, four hundred twenty-five thousand, six hundred twenty-three".