34390155 has 16 divisors (see below), whose sum is σ = 55560960. Its totient is φ = 18162528.

The previous prime is 34390127. The next prime is 34390177. The reversal of 34390155 is 55109343.

It is not a de Polignac number, because 34390155 - 2¹⁴ = 34373771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9585 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (3472560).

Almost surely, 2^34390155 is an apocalyptic number.

34390155 is a deficient number, since it is larger than the sum of its proper divisors (21170805).

34390155 is a wasteful number, since it uses less digits than its factorization.

34390155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22370.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 34390155 is about 5864.3119801047. The cubic root of 34390155 is about 325.1956376340.

Adding to 34390155 its reverse (55109343), we get a palindrome (89499498).

The spelling of 34390155 in words is "thirty-four million, three hundred ninety thousand, one hundred fifty-five".