743742819 has 12 divisors (see below), whose sum is σ = 1074627736. Its totient is φ = 495675072.

The previous prime is 743742781. The next prime is 743742841. The reversal of 743742819 is 918247347.

743742819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 743742819 - 2⁷ = 743742691 is a prime.

It is a super-2 number, since 2×743742819² = 1106306761628133522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743742619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23244 + ... + 45030.

Almost surely, 2^743742819 is an apocalyptic number.

743742819 is a deficient number, since it is larger than the sum of its proper divisors (330884917).

743742819 is a wasteful number, since it uses less digits than its factorization.

743742819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586 (or 25583 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 743742819 is about 27271.6486300334. The cubic root of 743742819 is about 906.0265587291.

The spelling of 743742819 in words is "seven hundred forty-three million, seven hundred forty-two thousand, eight hundred nineteen".