743445072 has 120 divisors (see below), whose sum is σ = 2200186560. Its totient is φ = 233694720.

The previous prime is 743445061. The next prime is 743445097. The reversal of 743445072 is 270544347.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768333 + ... + 769299.

It is an arithmetic number, because the mean of its divisors is an integer number (18334888).

Almost surely, 2^743445072 is an apocalyptic number.

743445072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743445072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100093280).

743445072 is an abundant number, since it is smaller than the sum of its proper divisors (1456741488).

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

743445072 is a wasteful number, since it uses less digits than its factorization.

743445072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

The square root of 743445072 is about 27266.1891726732. The cubic root of 743445072 is about 905.9056375854.

The spelling of 743445072 in words is "seven hundred forty-three million, four hundred forty-five thousand, seventy-two".