34245978 has 32 divisors (see below), whose sum is σ = 74872896. Its totient is φ = 10378368.

The previous prime is 34245977. The next prime is 34245983. The reversal of 34245978 is 87954243.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34245977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 8502.

It is an arithmetic number, because the mean of its divisors is an integer number (2339778).

Almost surely, 2^34245978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34245978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37436448).

34245978 is an abundant number, since it is smaller than the sum of its proper divisors (40626918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34245978 is a wasteful number, since it uses less digits than its factorization.

34245978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638.

The product of its digits is 241920, while the sum is 42.

The square root of 34245978 is about 5852.0063226213. The cubic root of 34245978 is about 324.7405519116.

The spelling of 34245978 in words is "thirty-four million, two hundred forty-five thousand, nine hundred seventy-eight".