34390 has 16 divisors (see below), whose sum is σ = 65520. Its totient is φ = 12960.

The previous prime is 34381. The next prime is 34403. The reversal of 34390 is 9343.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

34390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100 + ... + 280.

It is an arithmetic number, because the mean of its divisors is an integer number (4095).

2³⁴³⁹⁰ is an apocalyptic number.

34390 is a deficient number, since it is larger than the sum of its proper divisors (31130).

34390 is a wasteful number, since it uses less digits than its factorization.

34390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 34390 is about 185.4454097572. The cubic root of 34390 is about 32.5195149070.

It can be divided in two parts, 34 and 390, that added together give a palindrome (424).

The spelling of 34390 in words is "thirty-four thousand, three hundred ninety".