743273428 has 12 divisors (see below), whose sum is σ = 1357282080. Its totient is φ = 355478552.

The previous prime is 743273389. The next prime is 743273437. The reversal of 743273428 is 824372347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4039438 + ... + 4039621.

It is an arithmetic number, because the mean of its divisors is an integer number (113106840).

Almost surely, 2^743273428 is an apocalyptic number.

It is an amenable number.

743273428 is a deficient number, since it is larger than the sum of its proper divisors (614008652).

743273428 is a wasteful number, since it uses less digits than its factorization.

743273428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079086 (or 8079084 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 743273428 is about 27263.0414297451. The cubic root of 743273428 is about 905.8359147768.

The spelling of 743273428 in words is "seven hundred forty-three million, two hundred seventy-three thousand, four hundred twenty-eight".