34390509 has 8 divisors (see below), whose sum is σ = 45891072. Its totient is φ = 22908480.

The previous prime is 34390471. The next prime is 34390523. The reversal of 34390509 is 90509343.

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

It is not a de Polignac number, because 34390509 - 2¹⁹ = 33866221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 34390509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390009) 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, 517 + ... + 8309.

It is an arithmetic number, because the mean of its divisors is an integer number (5736384).

Almost surely, 2^34390509 is an apocalyptic number.

It is an amenable number.

34390509 is a deficient number, since it is larger than the sum of its proper divisors (11500563).

34390509 is a wasteful number, since it uses less digits than its factorization.

34390509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 34390509 is about 5864.3421625959. The cubic root of 34390509 is about 325.1967534462.

The spelling of 34390509 in words is "thirty-four million, three hundred ninety thousand, five hundred nine".