742018238 has 8 divisors (see below), whose sum is σ = 1198644888. Its totient is φ = 342469944.

The previous prime is 742018237. The next prime is 742018259. The reversal of 742018238 is 832810247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 742018198 and 742018207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742018237) 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, 14269556 + ... + 14269607.

It is an arithmetic number, because the mean of its divisors is an integer number (149830611).

Almost surely, 2^742018238 is an apocalyptic number.

742018238 is a deficient number, since it is larger than the sum of its proper divisors (456626650).

742018238 is a wasteful number, since it uses less digits than its factorization.

742018238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28539178.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 742018238 is about 27240.0117107170. The cubic root of 742018238 is about 905.3257226242.

The spelling of 742018238 in words is "seven hundred forty-two million, eighteen thousand, two hundred thirty-eight".