720488126 has 4 divisors (see below), whose sum is σ = 1080732192. Its totient is φ = 360244062.

The previous prime is 720488089. The next prime is 720488129. The reversal of 720488126 is 621884027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621884027 = 103 ⋅6037709.

It is a self number, because there is not a number n which added to its sum of digits gives 720488126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720488129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180122030 + ... + 180122033.

It is an arithmetic number, because the mean of its divisors is an integer number (270183048).

Almost surely, 2^720488126 is an apocalyptic number.

720488126 is a deficient number, since it is larger than the sum of its proper divisors (360244066).

720488126 is a wasteful number, since it uses less digits than its factorization.

720488126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360244065.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 720488126 is about 26841.9098798875. The cubic root of 720488126 is about 896.4834489430.

The spelling of 720488126 in words is "seven hundred twenty million, four hundred eighty-eight thousand, one hundred twenty-six".