742224208 has 40 divisors (see below), whose sum is σ = 1651367520. Its totient is φ = 319616640.

The previous prime is 742224187. The next prime is 742224221. The reversal of 742224208 is 802422247.

It is a self number, because there is not a number n which added to its sum of digits gives 742224208.

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, 107635 + ... + 114322.

It is an arithmetic number, because the mean of its divisors is an integer number (41284188).

Almost surely, 2^742224208 is an apocalyptic number.

It is an amenable number.

742224208 is an abundant number, since it is smaller than the sum of its proper divisors (909143312).

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

742224208 is a wasteful number, since it uses less digits than its factorization.

742224208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221995 (or 221989 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 742224208 is about 27243.7921002198. The cubic root of 742224208 is about 905.4094818809.

The spelling of 742224208 in words is "seven hundred forty-two million, two hundred twenty-four thousand, two hundred eight".