1456720330 has 16 divisors (see below), whose sum is σ = 2823796584. Its totient is φ = 537865920.

The previous prime is 1456720297. The next prime is 1456720337. The reversal of 1456720330 is 330276541.

It can be written as a sum of positive squares in 4 ways, for example, as 1081949449 + 374770881 = 32893^2 + 19359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1456720292 and 1456720301.

It is not an unprimeable number, because it can be changed into a prime (1456720337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5602641 + ... + 5602900.

Almost surely, 2^1456720330 is an apocalyptic number.

1456720330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1456720330 is a deficient number, since it is larger than the sum of its proper divisors (1367076254).

1456720330 is a wasteful number, since it uses less digits than its factorization.

1456720330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205561.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 1456720330 is about 38167.0057772417. The cubic root of 1456720330 is about 1133.5971022934.

Adding to 1456720330 its reverse (330276541), we get a palindrome (1786996871).

The spelling of 1456720330 in words is "one billion, four hundred fifty-six million, seven hundred twenty thousand, three hundred thirty".