743561268 has 12 divisors (see below), whose sum is σ = 1734976320. Its totient is φ = 247853752.

The previous prime is 743561261. The next prime is 743561279. The reversal of 743561268 is 862165347.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×743561268³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743561261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30981708 + ... + 30981731.

It is an arithmetic number, because the mean of its divisors is an integer number (144581360).

Almost surely, 2^743561268 is an apocalyptic number.

It is an amenable number.

743561268 is an abundant number, since it is smaller than the sum of its proper divisors (991415052).

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

743561268 is a wasteful number, since it uses less digits than its factorization.

743561268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61963446 (or 61963444 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 743561268 is about 27268.3198602334. The cubic root of 743561268 is about 905.9528309970.

The spelling of 743561268 in words is "seven hundred forty-three million, five hundred sixty-one thousand, two hundred sixty-eight".