742344220 has 12 divisors (see below), whose sum is σ = 1558922904. Its totient is φ = 296937680.

The previous prime is 742344181. The next prime is 742344223. The reversal of 742344220 is 22443247.

742344220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742344223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18558586 + ... + 18558625.

It is an arithmetic number, because the mean of its divisors is an integer number (129910242).

Almost surely, 2^742344220 is an apocalyptic number.

It is an amenable number.

742344220 is an abundant number, since it is smaller than the sum of its proper divisors (816578684).

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

742344220 is a wasteful number, since it uses less digits than its factorization.

742344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37117220 (or 37117218 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 742344220 is about 27245.9945680094. The cubic root of 742344220 is about 905.4582785229.

Adding to 742344220 its reverse (22443247), we get a palindrome (764787467).

The spelling of 742344220 in words is "seven hundred forty-two million, three hundred forty-four thousand, two hundred twenty".