743378049 has 6 divisors (see below), whose sum is σ = 1073768306. Its totient is φ = 495585360.

The previous prime is 743377981. The next prime is 743378081. The reversal of 743378049 is 940873347.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 685130625 + 58247424 = 26175^2 + 7632^2 .

It is not a de Polignac number, because 743378049 - 2²⁹ = 206507137 is a prime.

It is a super-2 number, since 2×743378049² = 1105221847470092802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 743377995 and 743378013.

It is not an unprimeable number, because it can be changed into a prime (743378099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41298772 + ... + 41298789.

Almost surely, 2^743378049 is an apocalyptic number.

It is an amenable number.

743378049 is a deficient number, since it is larger than the sum of its proper divisors (330390257).

743378049 is a wasteful number, since it uses less digits than its factorization.

743378049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82597567 (or 82597564 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 743378049 is about 27264.9600953312. The cubic root of 743378049 is about 905.8784137233.

The spelling of 743378049 in words is "seven hundred forty-three million, three hundred seventy-eight thousand, forty-nine".