720213465 has 16 divisors (see below), whose sum is σ = 1153166400. Its totient is φ = 383838912.

The previous prime is 720213451. The next prime is 720213491. The reversal of 720213465 is 564312027.

It is not a de Polignac number, because 720213465 - 2⁵ = 720213433 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5431 + ... + 38339.

It is an arithmetic number, because the mean of its divisors is an integer number (72072900).

Almost surely, 2^720213465 is an apocalyptic number.

It is an amenable number.

720213465 is a deficient number, since it is larger than the sum of its proper divisors (432952935).

720213465 is a wasteful number, since it uses less digits than its factorization.

720213465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34376.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 720213465 is about 26836.7931206394. The cubic root of 720213465 is about 896.3695167689.

It can be divided in two parts, 720 and 213465, that added together give a triangular number (214185 = T₆₅₄).

The spelling of 720213465 in words is "seven hundred twenty million, two hundred thirteen thousand, four hundred sixty-five".