742241688 has 32 divisors (see below), whose sum is σ = 1953268800. Its totient is φ = 234391968.

The previous prime is 742241657. The next prime is 742241699. The reversal of 742241688 is 886142247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813406 + ... + 814317.

It is an arithmetic number, because the mean of its divisors is an integer number (61039650).

Almost surely, 2^742241688 is an apocalyptic number.

It is an amenable number.

742241688 is an abundant number, since it is smaller than the sum of its proper divisors (1211027112).

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

742241688 is a wasteful number, since it uses less digits than its factorization.

742241688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627751 (or 1627747 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 742241688 is about 27244.1129053599. The cubic root of 742241688 is about 905.4165895416.

The spelling of 742241688 in words is "seven hundred forty-two million, two hundred forty-one thousand, six hundred eighty-eight".