743055720 has 128 divisors (see below), whose sum is σ = 2574944640. Its totient is φ = 169533440.

The previous prime is 743055697. The next prime is 743055721. The reversal of 743055720 is 27550347.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (743055721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5884 + ... + 38996.

It is an arithmetic number, because the mean of its divisors is an integer number (20116755).

Almost surely, 2^743055720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743055720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287472320).

743055720 is an abundant number, since it is smaller than the sum of its proper divisors (1831888920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

743055720 is a wasteful number, since it uses less digits than its factorization.

743055720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33155 (or 33151 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 743055720 is about 27259.0484059881. The cubic root of 743055720 is about 905.7474650554.

The spelling of 743055720 in words is "seven hundred forty-three million, fifty-five thousand, seven hundred twenty".