720022461 has 16 divisors (see below), whose sum is σ = 1043159040. Its totient is φ = 440080560.

The previous prime is 720022453. The next prime is 720022481. The reversal of 720022461 is 164220027.

It is not a de Polignac number, because 720022461 - 2³ = 720022453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720022451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201975 + ... + 205508.

It is an arithmetic number, because the mean of its divisors is an integer number (65197440).

Almost surely, 2^720022461 is an apocalyptic number.

It is an amenable number.

720022461 is a deficient number, since it is larger than the sum of its proper divisors (323136579).

720022461 is a wasteful number, since it uses less digits than its factorization.

720022461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407536.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 720022461 is about 26833.2342627571. The cubic root of 720022461 is about 896.2902692916.

Adding to 720022461 its reverse (164220027), we get a palindrome (884242488).

The spelling of 720022461 in words is "seven hundred twenty million, twenty-two thousand, four hundred sixty-one".