720049530 has 32 divisors (see below), whose sum is σ = 1731590784. Its totient is φ = 191627456.

The previous prime is 720049513. The next prime is 720049543. The reversal of 720049530 is 35940027.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8769 + ... + 38948.

It is an arithmetic number, because the mean of its divisors is an integer number (54112212).

Almost surely, 2^720049530 is an apocalyptic number.

720049530 is an abundant number, since it is smaller than the sum of its proper divisors (1011541254).

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

720049530 is a wasteful number, since it uses less digits than its factorization.

720049530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48230.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 720049530 is about 26833.7386511831. The cubic root of 720049530 is about 896.3015010603.

Adding to 720049530 its reverse (35940027), we get a palindrome (755989557).

The spelling of 720049530 in words is "seven hundred twenty million, forty-nine thousand, five hundred thirty".