3330720450 has 72 divisors (see below), whose sum is σ = 8970301236. Its totient is φ = 886032000.

The previous prime is 3330720443. The next prime is 3330720469. The reversal of 3330720450 is 540270333.

It can be written as a sum of positive squares in 6 ways, for example, as 81378441 + 3249342009 = 9021^2 + 57003^2 .

It is a super-2 number, since 2×3330720450² = 22187397432096405000, which contains 22 as substring.

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 35 ways as a sum of consecutive naturals, for example, 180660 + ... + 198240.

Almost surely, 2^3330720450 is an apocalyptic number.

3330720450 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 3330720450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4485150618).

3330720450 is an abundant number, since it is smaller than the sum of its proper divisors (5639580786).

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

3330720450 is a wasteful number, since it uses less digits than its factorization.

3330720450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020 (or 18012 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 3330720450 is about 57712.3942494158. The cubic root of 3330720450 is about 1493.4111672313.

Adding to 3330720450 its reverse (540270333), we get a palindrome (3870990783).

The spelling of 3330720450 in words is "three billion, three hundred thirty million, seven hundred twenty thousand, four hundred fifty".