742241808 has 360 divisors, whose sum is σ = 2692568736. Its totient is φ = 188697600.

The previous prime is 742241803. The next prime is 742241827. The reversal of 742241808 is 808142247.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (742241803) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5665903 + ... + 5666033.

Almost surely, 2^742241808 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 742241808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346284368).

742241808 is an abundant number, since it is smaller than the sum of its proper divisors (1950326928).

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

742241808 is a wasteful number, since it uses less digits than its factorization.

742241808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 742241808 is about 27244.1151076705. The cubic root of 742241808 is about 905.4166383353.

The spelling of 742241808 in words is "seven hundred forty-two million, two hundred forty-one thousand, eight hundred eight".