34378146 has 48 divisors (see below), whose sum is σ = 84801600. Its totient is φ = 9963360.

The previous prime is 34378121. The next prime is 34378147. The reversal of 34378146 is 64187343.

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 34378146.

It is not an unprimeable number, because it can be changed into a prime (34378147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780 + ... + 8328.

It is an arithmetic number, because the mean of its divisors is an integer number (1766700).

Almost surely, 2^34378146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34378146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42400800).

34378146 is an abundant number, since it is smaller than the sum of its proper divisors (50423454).

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

34378146 is a wasteful number, since it uses less digits than its factorization.

34378146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591 (or 7588 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 34378146 is about 5863.2879854225. The cubic root of 34378146 is about 325.1577805877.

The spelling of 34378146 in words is "thirty-four million, three hundred seventy-eight thousand, one hundred forty-six".