742543544 has 16 divisors (see below), whose sum is σ = 1474167600. Its totient is φ = 349432192.

The previous prime is 742543537. The next prime is 742543573. The reversal of 742543544 is 445345247.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 742543498 and 742543507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729804 + ... + 2730075.

It is an arithmetic number, because the mean of its divisors is an integer number (92135475).

Almost surely, 2^742543544 is an apocalyptic number.

It is an amenable number.

742543544 is a deficient number, since it is larger than the sum of its proper divisors (731624056).

742543544 is a wasteful number, since it uses less digits than its factorization.

742543544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459902 (or 5459898 counting only the distinct ones).

The product of its digits is 268800, while the sum is 38.

The square root of 742543544 is about 27249.6521812665. The cubic root of 742543544 is about 905.5393116475.

The spelling of 742543544 in words is "seven hundred forty-two million, five hundred forty-three thousand, five hundred forty-four".