743222772 has 72 divisors (see below), whose sum is σ = 1982504160. Its totient is φ = 234118080.

The previous prime is 743222729. The next prime is 743222773. The reversal of 743222772 is 277222347.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743222773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334738 + ... + 336950.

It is an arithmetic number, because the mean of its divisors is an integer number (27534780).

Almost surely, 2^743222772 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 743222772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991252080).

743222772 is an abundant number, since it is smaller than the sum of its proper divisors (1239281388).

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

743222772 is a wasteful number, since it uses less digits than its factorization.

743222772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2728 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 743222772 is about 27262.1123906421. The cubic root of 743222772 is about 905.8153359584.

The spelling of 743222772 in words is "seven hundred forty-three million, two hundred twenty-two thousand, seven hundred seventy-two".