720000442 has 16 divisors (see below), whose sum is σ = 1257576192. Its totient is φ = 302749200.

The previous prime is 720000397. The next prime is 720000461. The reversal of 720000442 is 244000027.

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 7 ways as a sum of consecutive naturals, for example, 484434 + ... + 485917.

It is an arithmetic number, because the mean of its divisors is an integer number (78598512).

Almost surely, 2^720000442 is an apocalyptic number.

720000442 is a deficient number, since it is larger than the sum of its proper divisors (537575750).

720000442 is a wasteful number, since it uses less digits than its factorization.

720000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970413.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 720000442 is about 26832.8239661799. The cubic root of 720000442 is about 896.2811327170.

Adding to 720000442 its reverse (244000027), we get a palindrome (964000469).

The spelling of 720000442 in words is "seven hundred twenty million, four hundred forty-two", and thus it is an aban number.