349075146 has 64 divisors (see below), whose sum is σ = 828518400. Its totient is φ = 95933376.

The previous prime is 349075141. The next prime is 349075147. The reversal of 349075146 is 641570943.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349075141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 563625 + ... + 564243.

It is an arithmetic number, because the mean of its divisors is an integer number (12945600).

Almost surely, 2^349075146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349075146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414259200).

349075146 is an abundant number, since it is smaller than the sum of its proper divisors (479443254).

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

349075146 is a wasteful number, since it uses less digits than its factorization.

349075146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 349075146 is about 18683.5528205960. The cubic root of 349075146 is about 704.1085901816.

The spelling of 349075146 in words is "three hundred forty-nine million, seventy-five thousand, one hundred forty-six".