345426709 has 8 divisors (see below), whose sum is σ = 358082208. Its totient is φ = 332946000.

The previous prime is 345426691. The next prime is 345426727. The reversal of 345426709 is 907624543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345426691) and next prime (345426727).

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 345426709 - 2⁵ = 345426677 is a prime.

It is a super-2 number, since 2×345426709² = 238639222581141362, 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 (345426779) 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, 39667 + ... + 47584.

It is an arithmetic number, because the mean of its divisors is an integer number (44760276).

Almost surely, 2^345426709 is an apocalyptic number.

It is an amenable number.

345426709 is a deficient number, since it is larger than the sum of its proper divisors (12655499).

345426709 is a wasteful number, since it uses less digits than its factorization.

345426709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87395.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 345426709 is about 18585.6586915826. The cubic root of 345426709 is about 701.6469445154.

The spelling of 345426709 in words is "three hundred forty-five million, four hundred twenty-six thousand, seven hundred nine".