303620730 has 64 divisors (see below), whose sum is σ = 838183680. Its totient is φ = 68949504.

The previous prime is 303620719. The next prime is 303620743. The reversal of 303620730 is 37026303.

It is a self number, because there is not a number n which added to its sum of digits gives 303620730.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 28366 + ... + 37574.

It is an arithmetic number, because the mean of its divisors is an integer number (13096620).

Almost surely, 2^303620730 is an apocalyptic number.

303620730 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 303620730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419091840).

303620730 is an abundant number, since it is smaller than the sum of its proper divisors (534562950).

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

303620730 is a wasteful number, since it uses less digits than its factorization.

303620730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9383.

The product of its (nonzero) digits is 2268, while the sum is 24.

The square root of 303620730 is about 17424.7160665533. The cubic root of 303620730 is about 672.1153385857.

The spelling of 303620730 in words is "three hundred three million, six hundred twenty thousand, seven hundred thirty".