720226045 has 16 divisors (see below), whose sum is σ = 1077533568. Its totient is φ = 448971840.

The previous prime is 720226043. The next prime is 720226093. The reversal of 720226045 is 540622027.

It is not a de Polignac number, because 720226045 - 2¹ = 720226043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720226043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934974 + ... + 935743.

It is an arithmetic number, because the mean of its divisors is an integer number (67345848).

Almost surely, 2^720226045 is an apocalyptic number.

It is an amenable number.

720226045 is a deficient number, since it is larger than the sum of its proper divisors (357307523).

720226045 is a wasteful number, since it uses less digits than its factorization.

720226045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870740.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 720226045 is about 26837.0274993338. The cubic root of 720226045 is about 896.3747357136.

The spelling of 720226045 in words is "seven hundred twenty million, two hundred twenty-six thousand, forty-five".