353249730 has 96 divisors (see below), whose sum is σ = 965600064. Its totient is φ = 89486208.

The previous prime is 353249723. The next prime is 353249731. The reversal of 353249730 is 37942353.

353249730 is a `hidden beast` number, since 3 + 532 + 4 + 97 + 30 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (353249731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141957 + ... + 144423.

It is an arithmetic number, because the mean of its divisors is an integer number (10058334).

Almost surely, 2^353249730 is an apocalyptic number.

353249730 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 353249730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482800032).

353249730 is an abundant number, since it is smaller than the sum of its proper divisors (612350334).

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

353249730 is a wasteful number, since it uses less digits than its factorization.

353249730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 353249730 is about 18794.9389464292. The cubic root of 353249730 is about 706.9042828059.

It can be divided in two parts, 35324 and 9730, that added together give a palindrome (45054).

The spelling of 353249730 in words is "three hundred fifty-three million, two hundred forty-nine thousand, seven hundred thirty".