340299450 has 72 divisors (see below), whose sum is σ = 927235296. Its totient is φ = 89460000.

The previous prime is 340299437. The next prime is 340299451. The reversal of 340299450 is 54992043.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340299451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26625 + ... + 37275.

It is an arithmetic number, because the mean of its divisors is an integer number (12878268).

Almost surely, 2^340299450 is an apocalyptic number.

340299450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 340299450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463617648).

340299450 is an abundant number, since it is smaller than the sum of its proper divisors (586935846).

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

340299450 is a wasteful number, since it uses less digits than its factorization.

340299450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10740 (or 10732 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 340299450 is about 18447.2071056840. The cubic root of 340299450 is about 698.1580485719.

The spelling of 340299450 in words is "three hundred forty million, two hundred ninety-nine thousand, four hundred fifty".