720022743 has 32 divisors (see below), whose sum is σ = 1232133120. Its totient is φ = 410705280.

The previous prime is 720022739. The next prime is 720022753. The reversal of 720022743 is 347220027.

It is not a de Polignac number, because 720022743 - 2² = 720022739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720022703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66255 + ... + 76352.

It is an arithmetic number, because the mean of its divisors is an integer number (38504160).

Almost surely, 2^720022743 is an apocalyptic number.

720022743 is a deficient number, since it is larger than the sum of its proper divisors (512110377).

720022743 is a wasteful number, since it uses less digits than its factorization.

720022743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142644 (or 142638 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 720022743 is about 26833.2395174343. The cubic root of 720022743 is about 896.2903863036.

The spelling of 720022743 in words is "seven hundred twenty million, twenty-two thousand, seven hundred forty-three".