742923544 has 48 divisors (see below), whose sum is σ = 1535607360. Its totient is φ = 336705600.

The previous prime is 742923491. The next prime is 742923547. The reversal of 742923544 is 445329247.

It is a junction number, because it is equal to n+sod(n) for n = 742923497 and 742923506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742923547) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 406617 + ... + 408439.

It is an arithmetic number, because the mean of its divisors is an integer number (31991820).

Almost surely, 2^742923544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742923544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767803680).

742923544 is an abundant number, since it is smaller than the sum of its proper divisors (792683816).

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

742923544 is a wasteful number, since it uses less digits than its factorization.

742923544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272 (or 2257 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 742923544 is about 27256.6238554961. The cubic root of 742923544 is about 905.6937565770.

The spelling of 742923544 in words is "seven hundred forty-two million, nine hundred twenty-three thousand, five hundred forty-four".