34457309 has 4 divisors (see below), whose sum is σ = 34497216. Its totient is φ = 34417404.

The previous prime is 34457273. The next prime is 34457327. The reversal of 34457309 is 90375443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90375443 = 3539 ⋅25537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34457309 is a prime.

It is a super-2 number, since 2×34457309² = 2374612287042962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34457359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18629 + ... + 20394.

It is an arithmetic number, because the mean of its divisors is an integer number (8624304).

Almost surely, 2^34457309 is an apocalyptic number.

It is an amenable number.

34457309 is a deficient number, since it is larger than the sum of its proper divisors (39907).

34457309 is an equidigital number, since it uses as much as digits as its factorization.

34457309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39906.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 34457309 is about 5870.0348380568. The cubic root of 34457309 is about 325.4071709319.

The spelling of 34457309 in words is "thirty-four million, four hundred fifty-seven thousand, three hundred nine".