720424245 has 8 divisors (see below), whose sum is σ = 1152678816. Its totient is φ = 384226256.

The previous prime is 720424231. The next prime is 720424247. The reversal of 720424245 is 542424027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720424245 is a prime.

It is a super-2 number, since 2×720424245² = 1038022185567640050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720424247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24014127 + ... + 24014156.

It is an arithmetic number, because the mean of its divisors is an integer number (144084852).

Almost surely, 2^720424245 is an apocalyptic number.

It is an amenable number.

720424245 is a deficient number, since it is larger than the sum of its proper divisors (432254571).

720424245 is a wasteful number, since it uses less digits than its factorization.

720424245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48028291.

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 720424245 is about 26840.7199046523. The cubic root of 720424245 is about 896.4569530394.

The spelling of 720424245 in words is "seven hundred twenty million, four hundred twenty-four thousand, two hundred forty-five".